News Articles for Solar System

'Cumberland' Target Drilled by Curiosity

May 20, 2013

NASA Mars Rover Curiosity Drills Second Rock Target

NASA's Mars rover Curiosity has used the drill on its robotic arm to collect a powdered sample from the interior of a rock called "Cumberland."

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Rock Target 'Esperance' Altered by Wet History (False Color)

May 17, 2013

Mars Rover Opportunity Examines Clay Clues in Rock

NASA's senior Mars rover, Opportunity, is driving to a new study area after a dramatic finish to 20 months on "Cape York" with examination of a rock intensely altered by water.

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View Back at Record-Setting Drive by Opportunity

May 16, 2013

Nine-Year-Old Mars Rover Passes 40-Year-Old Record

NASA's Mars rover Opportunity now holds the record for farthest driving by a NASA vehicle on a world away from Earth, passing a mark set by an Apollo astronaut-driven rover.

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The orbit of asteroid 1998 QE2.

May 15, 2013

Asteroid 1998 QE2 to Sail Past Earth Nine Times Larger Than Cruise Ship

Asteroid 1998 QE2 will get no closer than about 3.6 million miles at time of closest approach on May 31 at 1:59 p.m. Pacific (4:59 p.m. Eastern).

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Fresh Cluster of Impact Craters on Mars

May 15, 2013

NASA Probe Counts Space Rock Impacts on Mars

Scientists using images from NASA's Mars Reconnaissance Orbiter have estimated that the planet is bombarded by more than 200 small asteroids or bits of comets per year.

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Global Topographic Map of Titan

May 15, 2013

Cassini Shapes First Global Topographic Map of Titan

Scientists have used data from NASA's Cassini spacecraft to map the highs and lows of Titan, Saturn's largest moon.

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'Cumberland' Selected as Curiosity's Second Drilling Target

May 9, 2013

NASA Curiosity Rover Team Selects Second Drilling Target on Mars

The team operating NASA's Curiosity Mars rover has selected a second target rock for drilling and sampling.

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Team Behind Curiosity Receives Collier Trophy

May 9, 2013

NASA Curiosity Rover Wins Prestigious Awards

Two prominent aerospace industry organizations are recognizing the contributions of NASA, especially the achievements of the team that landed NASA's Curiosity rover on Mars in August, with coveted awards.

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Artist Concept of Particle Population in Saturn's Magnetosphere

May 2, 2013

'Tis the Season -- for Plasma Changes at Saturn

NASA's Cassini mission helps reveal seasonal changes in the bubble of charged particles around Saturn, providing a clue to some long-standing mysteries.

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NASA's Curiosity Mars rover social media campaign and its Solar System Exploration site

May 1, 2013

Mars Rover Social Media, NASA/JPL Website Win Awards

NASA's Curiosity Mars rover social media campaign and the agency's Solar System Exploration website win Webby Awards, the leading honor for the best of the Internet.

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Artist concept of Mars Exploration Rover. Image credit: NASA/JPL-Caltech

May 1, 2013

Opportunity Exits Standby, Back at Work

NASA's Mars Exploration Rover Opportunity has exited a standby mode and is now executing a sequence of commands sent by the rover team.

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The Rose

April 29, 2013

NASA Probe Gets Close-Up Views of Large Hurricane on Saturn

NASA's Cassini spacecraft has provided scientists the first close-up, visible-light views of a behemoth hurricane swirling around Saturn's north pole.

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Curiosity's Entry, Descent and Landing Team at National Air and Space Museum

April 25, 2013

Curiosity Wins National Air and Space Museum Trophy

The team in charge of landing NASA's Mars rover Curiosity, managed by the Jet Propulsion Laboratory, received the museum's highest group honor.

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Meteors Meet Saturn's Rings

April 25, 2013

NASA Probe Observes Meteors Colliding with Saturn's Rings

NASA's Cassini spacecraft has provided the first direct evidence of small meteoroids breaking into streams of rubble and crashing into Saturn's rings.

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Fly Along with Voyager to Interstellar Space

April 24, 2013

NASA Invites the Public to Fly Along with Voyager

NASA's twin Voyager spacecraft are on the verge of plunging into interstellar space -- the space between stars -- and two new Web tools let the public fly along.

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New Project Managers for Mars Orbiters

April 17, 2013

NASA Mars Orbiters Have New Project Managers

Two NASA spacecraft orbiting Mars, both working long past their original prime missions, have new project managers at NASA's Jet Propulsion Laboratory, Pasadena, Calif.

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Tempel Alive with Light

April 16, 2013

How to Target an Asteroid

The hunt is on for methods to aim a spacecraft at an asteroid.

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These images from NASA's Cassini spacecraft show one of the large seas and a bounty of smaller lakes on Saturn's moon Titan.

April 15, 2013

Titan's Methane: Going, Going, Soon to Be Gone?

NASA's Cassini mission tracks long-lived lakes in Titan's northern hemisphere and finds that the moon's methane may be disappearing.

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NEOCam Sensor

April 15, 2013

NASA-Funded Asteroid Tracking Sensor Passes Key Test

An infrared sensor that could improve NASA's future detecting and tracking of asteroids and comets has passed a critical design test.

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Energy From Above Affecting Surface of Europa

April 12, 2013

Where are the Best Windows Into Europa's Interior?

A new look at data from NASA's Galileo mission yields pointers for where on Europa's surface the watery interior of this moon of Jupiter is best revealed.

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This computer graphic depicts the orbit of comet 2013 A1 (Siding Spring) through the inner solar system.

April 12, 2013

Comet to Make Close Flyby of Red Planet in October 2014

New observations of comet C/2013 A1 (Siding Spring) have allowed NASA's Near-Earth Object Office at the Jet Propulsion Laboratory in Pasadena, Calif. to further refine the comet's orbit.

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Polar Vortex in Color

April 11, 2013

Ice Cloud Heralds Fall at Titan's South Pole

NASA's Cassini finds a kind of cloud only previously seen at the moon's north pole.

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Could This Be the Mars Soviet 3 Lander?

April 11, 2013

NASA Mars Orbiter Images May Show 1971 Soviet Lander

Hardware from a spacecraft that the Soviet Union landed on Mars in 1971 might appear in images from NASA's Mars Reconnaissance Orbiter.

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NASA's FY2014 budget proposal includes a plan to robotically capture a small near-Earth asteroid

April 10, 2013

NASA Associate Administrator on Asteroid Initiative

The following are statements from the associate administrators of three NASA directorates.

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Saturn's Ring 'Rain'

April 10, 2013

Blame it on the Rain (from Saturn's Rings)

A study partially funded by NASA finds that charged-water "rain" from Saturn's rings falls across large swaths of the planet.

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NASA logo

April 9, 2013

NASA, Mars Curiosity Win Awards for Social Media

NASA's official Twitter feed, @NASA, has won its second consecutive Shorty award for the best government use of social media.

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This image shows the first holes into rock drilled by NASA's Mars rover Curiosity

April 8, 2013

Remaining Martian Atmosphere Still Dynamic

Mars has lost much of its original atmosphere, but what's left remains quite active, recent findings from NASA's Mars rover Curiosity indicate.

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Europa Global Views in Natural and Enhanced Colors

April 4, 2013

Mapping the Chemistry Needed for Life at Europa

A new study led by a NASA researcher provides the first observations of the global distribution of hydrogen peroxide across the surface of Jupiter's moon Europa.

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Tvashtar in Motion

April 4, 2013

Scientists to Io: Volcanoes are in the Wrong Spot

Unexpected locations of volcanoes provide a clue that we don't fully understand Jupiter's moon Io, a fiery world observed by NASA's Voyager and Galileo spacecraft.

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MSL's Parachute Flapping in the Wind

April 3, 2013

Used Parachute on Mars Flaps in the Wind

Photos from NASA's Mars Reconnaissance Orbiter show how the parachute that helped NASA's Curiosity rover land on Mars last summer has changed its shape on the ground.

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Titan Up Front

April 2, 2013

NASA Team Investigates Complex Chemistry at Titan

A laboratory experiment at JPL simulating the atmosphere of Saturn's moon Titan suggests another region in the atmosphere that could brew up prebiotic materials.

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Bright Moons

March 26, 2013

Saturn is Like an Antiques Shop, Cassini Suggests

NASA's Cassini spacecraft analyzes the water ice and color distribution in the Saturn system, revealing gently worn, vintage goods.

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View From Camera Not Used During Curiosity's First Six Months on Mars

March 25, 2013

Curiosity Resumes Science Investigations

NASA's Mars rover Curiosity has resumed science investigations after recovery from a computer glitch that prompted a switch to a redundant main computer on Feb. 28.

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A Shared Bombardment History

March 25, 2013

NASA Scientists Find Moon, Asteroids Share History

NASA and international researchers have discovered that Earth's moon has more in common than previously thought with large asteroids roaming our solar system.

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Geometry of Mars Solar Conjunction

March 20, 2013

Sun in the Way Will Affect Mars Missions in April

The positions of the planets next month will mean diminished communications between Earth and NASA's spacecraft at Mars.

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Artist's concept of NASA's Voyager spacecraft.

March 20, 2013

NASA Voyager Status Update on Voyager 1 Location

The consensus of the Voyager science team is that Voyager 1 has not yet reached interstellar space.

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This self-portrait of NASA's Mars rover Curiosity combines 66 exposures

March 19, 2013

Curiosity Rover Exits 'Safe Mode'

NASA's Mars rover Curiosity has returned to active status and is on track to resume science investigations, following two days in a precautionary standby status, "safe mode."

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Lunar Reconnaissance Orbiter Camera image shows the impact site of GRAIL A

March 19, 2013

Lunar Reconnaissance Orbiter Sees GRAIL's Explosive Farewell

NASA's Lunar Reconnaissance Orbiter spacecraft has imaged the final resting places on the moon of both of NASA's GRAIL spacecraft.

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Radar Images of Asteroid 2013 ET

March 18, 2013

Goldstone Radar Snags Images of Asteroid 2013 ET

Scientists capture radar images of asteroid 2013 ET.

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Hydration Map, Based on Mastcam Spectra, for 'Knorr' Rock Target

March 18, 2013

Curiosity Mars Rover Sees Trend in Water Presence

NASA's Mars rover Curiosity has seen evidence of water-bearing minerals in rocks near where it had already found clay minerals inside a drilled rock.

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This self-portrait of NASA's Mars rover Curiosity combines 66 exposures taken by the rover's Mars Hand Lens Imager

March 18, 2013

New Curiosity 'Safe Mode' Status Expected to be Brief

Engineers have quickly diagnosed a software issue that prompted NASA's Mars rover Curiosity to put itself into a precautionary standby status over the weekend.

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Montage of our solar system.

March 15, 2013

Moon, Mars Science Conference Events to be Streamed

Science conference briefings to be held next week in Houston will be streamed live online.

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A white-balanced mosaic of Mars' Mt. Sharp from NASA's Mars rover Curiosity

March 15, 2013

Panorama From NASA Mars Rover Shows Mount Sharp

Rising above the present location of NASA's Mars rover Curiosity, higher than any mountain in the 48 contiguous states of the United States, Mount Sharp is featured in new imagery from the rover.

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Peering Deep into Jupiter's Atmosphere

March 14, 2013

'Hot Spots' Ride a Merry-Go-Round on Jupiter

NASA's Cassini spacecraft tracks the shifting shape of holes in Jupiter's atmosphere over time.

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Veronica McGregor, Stephanie Smith and Courtney O'Connor of JPL accepted the SXSW Interactive Social Media Award.

March 13, 2013

Mars Curiosity Lands South by Southwest Interactive Award

The down-to-Earth persona of NASA's Mars Curiosity rover has captured the 2013 South by Southwest (SXSW) Interactive Award for best social media campaign.

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Curiosity Rover's Self Portrait at 'John Klein' Drilling Site

March 13, 2013

NASA Mars Rover Mission Picked for Smithsonian Honor

The team in charge of successfully landing NASA's Mars rover Curiosity will receive the Smithsonian National Air and Space Museum's 2013 Trophy for Current Achievement.

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Two Different Aqueous Environments

March 12, 2013

NASA Rover Finds Conditions Once Suited for Ancient Life on Mars

An analysis of a rock sample collected by NASA's Curiosity rover shows ancient Mars could have supported living microbes.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

March 11, 2013

Curiosity Rover's Recovery Moving Forward

NASA's Mars rover Curiosity continues to move forward with assessment and recovery from a memory glitch that affected the rover's A-side computer.

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Portrait of a Lady

March 11, 2013

Cassini Returns Images of Battered Saturn Moon

Craters and a curious feature are visible in images of Rhea returned by NASA's Cassini spacecraft.

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For those in search of comet L4 PANSTARRS, look to the west after sunset in early and mid-March.

March 7, 2013

Comet PANSTARRS Rises to the Occasion Mid-March

A beautiful comet with a bulky name is making an appearance this month for lucky sky-watchers in some parts of the world.

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Visualization of Buried Marte Vallis Channels

March 7, 2013

NASA Helps See Buried Mars Flood Channels in 3-D

NASA's Mars Reconnaissance Orbiter has provided images allowing scientists for the first time to create a 3-D reconstruction of ancient water channels below the Martian surface.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover

March 7, 2013

NASA Briefing on Curiosity's Analysis of Mars Rock

NASA will hold a news conference at 10 a.m. PDT (1 p.m. EDT), Tuesday, March 12, on the Curiosity rover's analysis of the first sample of rock powder ever collected on Mars.

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NASA's Cassini spacecraft will be flying close to Saturn's moon Rhea on Saturday

March 7, 2013

Cassini Makes Last Close Flyby of Saturnian Moon Rhea

NASA's Cassini spacecraft will use its instruments to probe the internal structure of the icy Saturnian moon Rhea.

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Herschel's Cool Universe

March 5, 2013

Herschel to Complete Its Mission Soon

The Herschel space observatory is expected to exhaust its supply of liquid helium coolant in the coming weeks, after spending more than three years studying the cool universe.

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Taste of the Ocean on Europa's Surface

March 5, 2013

A Window into Europa's Ocean Right at the Surface

A study partially funded by NASA finds evidence of ocean salt on Europa's surface.

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Curiosity Rover's Self Portrait at 'John Klein' Drilling Site

March 4, 2013

Curiosity Rover's Recovery on Track

NASA's Mars rover Curiosity has transitioned from precautionary "safe mode" to active status on the path of recovery from a memory glitch last week.

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Earth's Twin Seen From Saturn

March 1, 2013

Cassini Spies Bright Venus From Saturn Orbit

A distant world gleaming in sunlight, Earth's twin planet, Venus, shines like a bright beacon in images taken by NASA's Cassini spacecraft in orbit around Saturn.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

February 28, 2013

Computer Swap on Curiosity Rover

The ground team for NASA's Mars rover Curiosity has switched the rover to a redundant onboard computer in response to a memory issue on the computer that had been active.

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The left Mast Camera (Mastcam) on NASA's Mars rover Curiosity took this image of Curiosity's sample-processing

February 25, 2013

Lab Instruments Inside Curiosity Eat Mars Rock Powder

NASA's Mars rover Curiosity has delivered sample portions of rock powder collected from the interior of a rock on Mars into laboratory instruments inside the rover.

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The JUpiter ICy moons Explorer mission, JUICE

February 21, 2013

NASA and JPL Contribute to European Jupiter Mission

NASA has selected key contributions to a 2022 European Space Agency mission to study Jupiter and three of its largest moons.

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Ninth-grade, high-school students from Peoria, AZ analyze images of Mars.

February 21, 2013

NASA Student Mars Project Wins Education Award

A NASA project that allows students to use a camera on a spacecraft orbiting Mars for research has received a new education prize from the journal Science.

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First Curiosity Drilling Sample in the Scoop

February 20, 2013

NASA Rover Confirms First Drilled Mars Rock Sample

NASA's Mars rover Curiosity has relayed new images that confirm it has successfully obtained the first sample ever collected from the interior of a rock on another planet.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover

February 20, 2013

NASA Hosts Teleconference Today About Curiosity Rover

NASA will host a media teleconference at noon PST (3 p.m. EST) today, Feb. 20, to provide an update on the Mars rover Curiosity mission.

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Cassini at Saturn's bow shock

February 19, 2013

Cassini Sheds Light on Cosmic Particle Accelerators

Studying the flow of solar wind around Saturn's magnetic field enables scientists working with NASA's Cassini spacecraft to study the nature of far-off supernova explosions.

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Radar image of asteroid 2012 DA14

February 19, 2013

NASA Releases Radar Movie of Asteroid 2012 DA14

An initial sequence of radar images of asteroid 2012 DA14 was obtained on Feb. 15/16, 2013, by NASA's 230-foot (70-meter) Deep Space Network antenna at Goldstone, Calif.

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February 15, 2013

NASA Experts Discuss Russia Meteor in Media Teleconference Today

NASA experts will hold a teleconference for news media at 1 p.m. PST (4 p.m. EST) today to discuss a meteor that streaked through the skies over Russia's Urals region this morning.

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A meteor seen flying over Russia on Feb. 15 at 3:20: 26 UTC impacted Chelyabinsk.

February 15, 2013

Additional Details on the Large Feb. 15 Fireball over Russia

New data fill in some gaps in the story of a fireball that entered Earth's atmosphere near Chelyabinsk, Russia, on Feb. 15.

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This animated set of three images depicts asteroid 2012 DA14 as it was seen on Feb. 14, 2013

February 14, 2013

Near-Earth Asteroid Makes Preview Appearance

Asteroid 2012 DA14, set to make its closest approach to Earth on Feb. 15, is captured in early images from Australia.

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Diagram depicting the passage of asteroid 2012 DA14 through the Earth-moon system on Feb. 15, 2013.

February 13, 2013

NASA to Chronicle Close Earth Flyby of Asteroid

NASA Television will provide commentary starting at 11 a.m. PST (2 p.m. EST) on Friday, Feb. 15, during the close, but safe, flyby of a small near-Earth asteroid named 2012 DA14.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

February 13, 2013

National Space Club Honors Mars Curiosity

The National Space Club will honor NASA's Curiosity/Mars Science Laboratory team with three awards, including the prestigious Dr. Robert H. Goddard Memorial Trophy.

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NASA's MAVEN spacecraft recently completed assembly and has started environmental testing.

February 13, 2013

NASA's MAVEN Mission Completes Assembly

NASA's next mission to Mars, MAVEN, has completed spacecraft assembly and begun environmental testing.

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A shiny-looking Martian rock is visible in this image

February 11, 2013

Mars Rock Takes Unusual Form

On Mars, as on Earth, sometimes things can take on an unusual appearance. A case in point is a shiny-looking rock seen in a recent image from NASA's Curiosity Mars rover.

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Curiosity's First Sample Drilling

February 9, 2013

NASA Curiosity Rover Collects First Martian Bedrock Sample

NASA's Curiosity rover has, for the first time, used a drill carried at the end of its robotic arm to bore into a flat, veiny rock on Mars and collect a sample from its interior.

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Preparatory Test of Drilling on Mars Generates Rock Powder

February 7, 2013

Preparatory Drill Test Performed on Mars

NASA's Mars rover Curiosity has produced some rock powder with its drill as the last major test before the rover's first full drilling.

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This is the orbital trajectory of comet C/2012 S1 (ISON).

February 5, 2013

NASA's Deep Impact Spacecraft Eyes Comet ISON

NASA's Deep Impact spacecraft has acquired its first images of comet C/2012 S1 (ISON).

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Preparatory Test for First Rock Drilling by Mars Rover Curiosity

February 4, 2013

Weekend Test on Mars Was Preparation to Drill a Rock

NASA's Mars rover Curiosity used the hammering action of its drill on Feb. 2 as the second-to-last major test before the first full drilling to collect a sample of rock dust.

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Diagram depicting the passage of asteroid 2012 DA14 through the Earth-moon system on Feb. 15, 2013.

February 4, 2013

NASA to Host Feb. 7 Media Telecon on Asteroid Flyby

NASA will hold a media teleconference at 11 a.m. PST (2 p.m. EST), on Thursday, Feb. 7, to discuss an asteroid that will pass close, but safely, by Earth on Feb. 15.

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Reflection of Sunlight off Titan Lake

February 4, 2013

Cassini Sees Titan Cooking up Smog

A new paper details how the aerosol particles on Saturn's smog-shrouded moon get their start, suggesting ways such particles can form in the atmospheres of other worlds.

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Diagram depicting the passage of asteroid 2012 DA14 through the Earth-moon system on Feb. 15, 2013.

February 1, 2013

Small Asteroid to Whiz Past Earth Safely

A small asteroid named 2012 DA14 will safely fly past Earth's outer ring of satellites on February 15.

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Storm Head, Meet Tail

January 31, 2013

NASA's Cassini Watches Storm Choke on Its Own Tail

Scientists see a monstrous thunder-and-lightning storm sputter out after it churns around the planet and encounters its own wake.

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Curiosity's Drill in Place for Load Testing Before Drilling

January 28, 2013

Curiosity Maneuver Prepares for Drilling

NASA's Mars rover Curiosity has placed its drill onto a series of locations on a Martian rock and pressed down on it with the rover's arm, in preparation for using the drill.

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Seasonal Changes on Far-Northern Mars

January 24, 2013

Thawing 'Dry Ice' Drives Groovy Action on Mars

Researchers using NASA's Mars Reconnaissance Orbiter see seasonal changes on far-northern Martian sand dunes caused by the warming of a blanket of frozen carbon dioxide.

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MAHLI's First Night Imaging of Martian Rock, White Lighting

January 23, 2013

Mars Rover Curiosity Uses Arm Camera at Night

NASA's Mars rover Curiosity has for the first time used the camera on its arm to take photos at night, illuminated by white lights and ultraviolet lights on the instrument.

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'Matijevic Hill' Panorama for Rover's Ninth Anniversary

January 22, 2013

NASA's Veteran Mars Rover Ready to Start 10th Year

Though NASA's newer Mars rover has been capturing more attention recently, durable Opportunity remains hard at work after nine years of roving on the Red Planet.

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Curiosity Rover to be on display at The Changing Face of Mars film premier Jan. 23

January 22, 2013

Curiosity Rover on Display at Mars Film Premiere Tonight

A full-scale replica of the Curiosity Mars rover will be on display at the film premiere of "The Changing Face of Mars" on Jan 23 at Caltech's Beckman Auditorium.

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Layers with Carbonate Content Inside McLaughlin Crater on Mars

January 20, 2013

Martian Crater May Once Have Held Groundwater-Fed Lake

A NASA spacecraft is providing new evidence of a wet underground environment on Mars that adds to an increasingly complex picture of the Red Planet's early evolution.

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A model of the Mars rover Curiosity, similar to the one shown here, will ride in the Inaugural Parade

January 18, 2013

Ms. Curiosity Goes to Washington

It's an all-American, once-every-four-years tradition: the inauguration of a president.

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Titan Craters, the Old and the New

January 17, 2013

Titan Gets a Dune 'Makeover'

NASA's Cassini finds Saturn's largest moon, Titan, might look much younger than it really is because its craters are being erased.

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Simulating a Submarine Hydrothermal Vent

January 16, 2013

Bubbling up Organics in an Ocean Vent Simulator

This week, scientists at NASA's Jet Propulsion Laboratory are running an experiment simulating a deep ocean hydrothermal vent to test theories about the origins of life.

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Set of 55 high-resolution images, which were stitched together to create this full-color self-portrait.

January 15, 2013

Mars Rover Curiosity's Team to Receive Space Foundation Award

The people of NASA's Mars Science Laboratory mission have been named winners of a 2013 Space Foundation award for advancing exploration of space.

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'John Klein' Site Selected for Curiosity's Drill Debut

January 15, 2013

NASA Mars Rover Preparing to Drill Into First Martian Rock

NASA's Mars rover Curiosity is driving toward a flat rock with pale veins that may hold clues to a wet history on the Red Planet.

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This still image is from an animation that re-creates the final descent of ESA's Huygens probe as it landed on Titan on Jan.

January 14, 2013

When Huygens Met Titan

A new animation celebrates the 8th anniversary of the European Space Agency's Huygens probe landing on Saturn's moon Titan. It was delivered there by NASA's Cassini spacecraft.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover

January 14, 2013

NASA Hosts Jan. 15 Telecon About Mars Rover Progress

NASA hosts a media teleconference at 10 a.m. PST (1 p.m. EST) on Tuesday, Jan. 15, to provide an update about the Curiosity rover's mission to Mars' Gale Crater.

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Asteroid Apophis was discovered on June 19, 2004.

January 10, 2013

NASA Rules Out Earth Impact in 2036 for Asteroid Apophis

NASA scientists at the agency's Jet Propulsion Laboratory effectively have ruled out the possibility the asteroid Aphophis will impact Earth in 2036.

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Herschel's Three-Color View of Asteroid Apophis

January 9, 2013

Herschel Spacecraft Eyes Asteroid Apophis

Scientists using the Herschel Space Observatory made new observations of asteroid Apophis as it approached Earth this past weekend.

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Floating Ice on Titan Lakes?

January 8, 2013

Cassini Suggests Icing on a Lake

A new model by scientists working on NASA's Cassini mission finds that hydrocarbon ice might float on lakes on Saturn's largest moon.

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First Use of Mars Rover Curiosity's Dust Removal Tool

January 7, 2013

NASA's Big Mars Rover Makes First Use of its Brush

NASA's Mars rover Curiosity has completed first-time use of a brush it carries to sweep dust off rocks.

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'Snake River' Rock Feature Viewed by Curiosity Mars Rover

January 4, 2013

Curiosity Rover Explores 'Yellowknife Bay'

After imaging during the holidays, NASA's Mars rover Curiosity resumed driving Jan. 3 and pulled within arm's reach of a sinuous rock feature called "Snake River."

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This composite-color view from NASA's Dawn mission shows Cornelia Crater, streaked with dark materials, on the giant asteroid Vesta.

January 3, 2013

Picture This: Vesta's Dark Materials in Dawn's View

A new study of images from NASA's Dawn mission examines remarkable, dark-as-coal material that speckles the surface of the giant asteroid Vesta.

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The Curiosity Explorer Badge available on Foursquare

December 27, 2012

NASA Encourages Public to Explore Its Curiosity with New Rover-Themed Badge on Foursquare

NASA and the mobile application Foursquare have teamed up to help the public unlock its scientific curiosity with a new rover-themed Curiosity Explorer badge.

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Majestic Saturn, in the Infrared

December 20, 2012

Cassini Instrument Learns New Tricks

NASA's Cassini spacecraft is using its visual and infrared mapping spectrometer for more than looking at hydrocarbons on Saturn's moon Titan and dirt in Saturn's rings.

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Looking Back at Entry Into 'Yellowknife Bay'

December 18, 2012

Curiosity Rover Explores 'Yellowknife Bay'

The NASA Mars rover Curiosity this week is driving within a shallow depression called "Yellowknife Bay," providing information to help researchers choose a rock to drill.

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A Splendor Seldom Seen

December 18, 2012

From Cassini for the Holidays: A Splendor Seldom Seen

Just in time for the holidays, NASA's Cassini spacecraft, in orbit around Saturn for more than eight years, has delivered another glorious view of the planet Saturn and its rings.

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The final flight path for NASA's twin GRAIL mission spacecraft to impact the moon on Dec. 17.

December 17, 2012

NASA's GRAIL Lunar Impact Site Named for Astronaut Sally Ride

NASA has named the site where twin agency spacecraft impacted the moon Monday in honor of the late astronaut Sally K. Ride, who was America's first woman in space.

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An artist's depiction of the GRAIL twins (Ebb and Flow) in lunar orbit.

December 17, 2012

NASA GRAIL Twins Complete Their Moon Impact

Engineers at NASA's Jet Propulsion Laboratory have received confirmation that the twin GRAIL spacecraft have completed their planned impact into the moon.

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As the GRAIL twins (Ebb and Flow) fly over areas of greater and lesser gravity at 3,600 mph

December 14, 2012

Rocket Burn Sets Stage for Dynamic Moon Duos' Lunar Impact

The lunar twins of NASA's Gravity Recovery and Interior Laboratory (GRAIL) mission have each completed a rocket burn that has sealed their fate.

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Last Flight for GRAIL's Twin Spacecraft

December 14, 2012

NASA to Provide Commentary as Grail Moon Mission Ends

NASA will provide live commentary of the scheduled lunar surface impacts of its twin Gravity Recovery and Interior Laboratory (GRAIL) spacecraft beginning at 2 p.m. PST (5 p.m. EST) Monday, Dec. 17.

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Radar imagery of asteroid Toutatis taken by NASA's Goldstone Solar System Radar on Dec. 12 and 13, 2012.

December 14, 2012

Asteroid Toutatis Slowly Tumbles by Earth

Scientists have generated a series of radar data images of a three-mile-long (4.8-kilometer) asteroid that made its closest approach to Earth on Dec. 12, 2012.

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Last Flight for GRAIL's Twin Spacecraft

December 13, 2012

NASA Probes Prepare for Mission-Ending Moon Impact

Twin NASA spacecraft that spent this year studying the moon's internal structure and composition are being prepared for a controlled descent and impact on the moon on Dec. 17.

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On Dec. 14, 1962, NASA's Mariner 2 spacecraft sailed close to Venus

December 12, 2012

NASA Celebrates 50 Years of Planetary Exploration

Fifty years ago, NASA's Mariner 2 spacecraft sailed close to the planet Venus, marking the first time any spacecraft had ever successfully made a close-up study of another planet.

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Titan's Nile-Like River Valley

December 12, 2012

Cassini Spots Mini Nile River on Saturn Moon

Scientists with NASA's Cassini mission have spotted what appears to be a miniature, extraterrestrial likeness of the Nile River.

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Curiosity Self-Portrait, Wide View

December 11, 2012

Mars Rover Self-Portrait Shoot Uses Arm Choreography

A self-portrait of the NASA Mars Rover Curiosity stitches together dozens of images by the camera at the end of the rover's arm.

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Layered Martian Outcrop 'Shaler' in 'Glenelg' Area

December 11, 2012

Curiosity Rover Nearing Yellowknife Bay

The NASA Mars rover Curiosity drove 63 feet (19 meters) northeastward Monday, Dec. 10, approaching an area called "Yellowknife Bay," where researchers will choose a rock to drill.

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Artist concept of GRAIL mission. Grail will fly twin spacecraft in tandem orbits around the moon to measure its gravity field in unprecedented detail.

December 10, 2012

NASA hosts Dec. 13 Telecon on Twin Probes' Mission-Ending Moon Impact

NASA hosts a media teleconference at 10:30 a.m. PST (1:30 p.m. EST) Thurs., Dec. 13, to provide an overview of events leading up to twin spacecraft to impact the moon's surface.

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Sinuous Gullies in Cornelia Crater

December 6, 2012

What is Creating Gullies on Vesta?

Something is forming intriguing gullies on the giant asteroid Vesta. Scientists with NASA's Dawn mission are trying to figure out what could be creating these features.

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Impact Scars from MSL Cruise Stage and Two Balance Weights

December 5, 2012

Orbiter Spies Where Rover's Cruise Stage Hit Mars

Pictures from NASA's Mars Reconnaissance Orbiter show scars on the surface of the Red Planet where discarded pieces of the Mars Science Laboratory spacecraft hit the ground.

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GRAIL's Gravity Tour of the Moon

December 5, 2012

NASA's GRAIL Creates Most Accurate Moon Gravity Map

Twin NASA probes orbiting Earth's moon have generated the highest resolution gravity field map of any celestial body.

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Evidence suggests flowing water formed the rivers and gullies on the Mars surface

December 4, 2012

New NASA Mars Rover to Launch in 2020

NASA has announced plans for a robust multi-year Mars program, including a new robotic science rover set to launch in 2020.

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Opportunity Rover's Fall 2012 Walkabout

December 4, 2012

NASA Opportunity Rover Finishes Walkabout on Mars Crater Rim

The latest work assignment for NASA's long-lived Mars rover Opportunity is a further examination of an area where the robot just completed a walkabout.

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This still image and set of animations show NASA's Voyager 1 spacecraft exploring a new region in our solar system called the 'magnetic highway.'

December 3, 2012

NASA Voyager 1 Encounters New Region in Deep Space

NASA's Voyager 1 spacecraft has entered a new region at the far reaches of our solar system that scientists feel is the final area the spacecraft has to cross before reaching interstellar space.

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This is a view of the third (left) and fourth (right) trenches made by the 1.6-inch-wide (4-centimeter-wide) scoop on NASA's Mars rover Curiosity in October 2012.

December 3, 2012

NASA Mars Rover Fully Analyzes First Soil Samples

NASA's Mars Curiosity rover has used its full array of instruments to analyze Martian soil for the first time, and found a complex chemistry within the Martian soil.

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Artist's concept of NASA's Voyager spacecraft. Image credit: NASA/JPL-Caltech

November 29, 2012

NASA to Host Dec. 3 Teleconference About Voyager Mission

NASA will host a media teleconference at 11 a.m. PST (2 p.m. EST) on Monday, Dec. 3, to discuss the latest findings and travels of NASA's Voyager 1 spacecraft.

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Mercury's North Polar Region Acquired By The Arecibo Observatory

November 29, 2012

NASA Spacecraft Finds New Mercury Water Ice Evidence

NASA's MESSENGER mission finds compelling support for the hypothesis of abundant water ice and other frozen volatile materials in Mercury's permanently shadowed polar craters.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover

November 29, 2012

Update Set in San Francisco About Curiosity Mars Rover

The next news conference about the NASA Mars rover Curiosity will be held at 9 a.m. Monday, Dec. 3, in San Francisco at the Fall Meeting of the American Geophysical Union (AGU).

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Peering into the Storm

November 28, 2012

Swirling Storms on Saturn

NASA's Cassini spots roiling storm clouds and a swirling vortex at Saturn's north pole.

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Titan's Changing Seasons

November 28, 2012

NASA's Cassini Sees Abrupt Turn in Titan's Atmosphere

Data from NASA's Cassini spacecraft tie a shift in seasonal sunlight to a wholesale reversal, at unexpected altitudes, in the circulation of the atmosphere of Titan.

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Regional Dust Storm Weakening, Nov. 25, 2012

November 27, 2012

Regional Dust Storm Dissipating

A regional dust storm on Mars, tracked from orbit since Nov. 10, appears to be abating rather than going global.

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Nine Views of Asteroid PA8

November 26, 2012

Nine Radar Images of Asteroid 2007 PA8

Images of asteroid 2007 PA8 have been generated with data collected by NASA's Goldstone Solar System Radar.

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Panoramic View From 'Rocknest' Position of Curiosity Mars Rover

November 26, 2012

One Year After Launch, Curiosity Rover Busy on Mars

NASA's Mars Science Laboratory Mission launched a year ago today, putting the rover Curiosity on its way to Gale Crater, where it has been working for 16 weeks.

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Pac-Man-like features on Saturn's moons Tethys and Mimas

November 26, 2012

Cassini Finds a Video Gamers' Paradise at Saturn

NASA's Cassini spacecraft spots another 'Pac-Man'-shaped feature, this time on Saturn's moon Tethys.

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Martian Dust Storm, Nov. 18, 2012

November 21, 2012

Spacecraft Monitoring Martian Dust Storm

A Martian dust storm that NASA's Mars Reconnaissance Orbiter has been tracking since last week has also produced atmospheric changes detectable by rovers on Mars.

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Post-Drive View on Curiosity's Sol 102

November 20, 2012

Curiosity Rover Preparing for Thanksgiving Activities

NASA's Mars rover Curiosity completed a touch-and-go inspection of one rock on Sunday, Nov. 18, then pivoted and, on the same day, drove toward a Thanksgiving overlook location.

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Five Bites Into Mars

November 15, 2012

NASA Rover Providing New Weather and Radiation Data About Mars

Observations of wind patterns and natural radiation patterns on Mars by NASA's Curiosity rover are helping scientists better understand the environment on the Red Planet's surface.

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An Exploded Star's Remains and Its Murky Environment

November 14, 2012

Life and Death in a Star-Forming Cloud

New stars can be seen bubbling up around the remains of a dramatic stellar explosion in this new portrait from two space telescopes.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover

November 13, 2012

NASA Hosts Nov. 15 Telecon About Mars Rover Progress

NASA will host a media teleconference at 11 a.m. PST (2 p.m. EST) on Thursday, Nov. 15, to provide an update about the Curiosity rover's mission to Mars' Gale Crater.

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Inlet Covers for Sample Analysis at Mars

November 13, 2012

Rover's 'SAM' Lab Instrument Suite Tastes Soil

A pinch of fine sand and dust became the first solid Martian sample deposited into the biggest instrument on NASA's Mars rover Curiosity: the Sample Analysis at Mars, or SAM.

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Odyssey over Mars' South Pole

November 12, 2012

Long-Lived Orbiter Resumes Work With Fresh Equipment

The NASA Mars Odyssey orbiter has resumed duty after switching to a set of redundant equipment that had not be used since before the spacecraft's 2001 launch.

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A new interactive timeline of NASA's Cassini mission at Saturn

November 9, 2012

A Scroll Through Memory Lane With Cassini

A new, interactive version of a timeline of NASA's Cassini mission to Saturn is now available online.

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High-Resolution Self-Portrait by Curiosity Rover Arm Camera

November 6, 2012

Curiosity Team Switches Back to Earth Time

After three months working on "Mars time," the team operating NASA Mars rover Curiosity has switched to more regular hours, as planned.

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This composite image of asteroid 2007 PA8 was obtained using data taken by NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone

November 5, 2012

NASA Radar Images Asteroid 2007 PA8

Scientists working with NASA's 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif., have obtained several radar images depicting near-Earth asteroid 2007 PA8.

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Comet 168P-Hergenrother was imaged by the NOAO/Gemini telescope on Nov. 2, 2011 at about 6 a.m. UTC.

November 2, 2012

Scientists Monitor Comet Breakup

Comet 168P/Hergenrother is breaking up, right before our very eyes.

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Shooting Lasers

November 2, 2012

NASA Rover Finds Clues to Changes in Mars' Atmosphere

NASA's car-sized rover, Curiosity, has taken significant steps toward understanding how Mars may have lost much of its original atmosphere.

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NASA's Mars Odyssey spacecraft passes above Mars' south pole in this artist's concept.

November 1, 2012

Mars Longevity Champ Switching Computers

NASA's Mars Odyssey orbiter, already the longest-working spacecraft ever sent to Mars, will switch equipment next week that has not been used since before launch in 2001.

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Glowing Titan

October 31, 2012

Cassini Halloween Treat: Titan Glows in the Dark

NASA's Cassini spacecraft sees dim, unexplained light diffusing up through the atmosphere of Saturn's largest moon.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover

October 31, 2012

NASA Hosts Nov. 2 Teleconference About Mars Rover Progress

NASA will host a media teleconference at 10 a.m. PDT (1 p.m. EDT) on Friday, Nov. 2, to provide an update on Curiosity's studies of the Martian atmosphere.

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Canuleia, Up Close

October 31, 2012

Dawn Sees 'Young' Surface on Giant Asteroid

Like a Hollywood starlet constantly retouching her makeup, the giant asteroid Vesta is constantly stirring its outermost layer to present a young face.

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This graphic shows results of the first analysis of Martian soil by the Chemistry and Mineralogy (CheMin) experiment on NASA's Curiosity rover.

October 30, 2012

NASA Rover's First Soil Studies Help Fingerprint Martian Minerals

NASA's Mars rover Curiosity has completed initial experiments showing the mineralogy of Martian soil is similar to weathered basaltic soils of volcanic origin in Hawaii.

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Rock 'Et-Then' Near Curiosity, Sol 82

October 29, 2012

Continuing Work With Scoops at 'Rocknest'

NASA's Mars Rover Curiosity on Sol 82 (Oct. 29, 2012) photographed diverse rocks in the "Rocknest" area and prepared for overnight soil sample analysis.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover

October 26, 2012

NASA Oct. 30 Telecon About Mars Curiosity Progress

NASA will host a media teleconference at 11:30 a.m. PDT (2:30 p.m. EDT) on Tuesday, Oct. 30, to provide an update about the Curiosity rover's mission to Mars' Gale Crater.

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Scooped Material on Rover's Observation Tray

October 25, 2012

Assessing Drop-Off to Mars Rover's Observation Tray

NASA's Mars rover Curiosity used its Mast Camera (Mastcam) during the mission's 78th sol (Oct. 24, 2012) to view soil material on the rover's observation tray.

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These red, orange and green clouds (false color) in Saturn's northern hemisphere indicate the tail end of a  massive storm

October 25, 2012

NASA's Cassini Sees Burp at Saturn After Large Storm

NASA's Cassini spacecraft has tracked the aftermath of a rare massive storm on Saturn.

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Laser Hit on Martian Sand Target, Before and After

October 22, 2012

Curiosity Rover Collects Fourth Scoop of Martian Soil

NASA's rover Curiosity shook a scoopful of sand inside its sample-handling mechanism on Sol 75 (Oct. 21, 2012) as the third scrubbing of interior surfaces of the mechanism.

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Curiosity's First Three Bites Into Martian Ground

October 18, 2012

Mars Soil Sample Delivered for Analysis Inside Rover

NASA's Mars rover Curiosity has ingested its first solid sample into an analytical instrument inside the rover, a capability at the core of the two-year mission.

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Global Upheaval at Jupiter

October 17, 2012

Jupiter: Turmoil from Below, Battering from Above

NASA scientists are observing Jupiter's appearance - its clouds, belts, hotspots, fireballs - change in unprecedented ways.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover

October 16, 2012

NASA to Host Mars Curiosity Rover Teleconference Oct. 18

NASA will host a media teleconference at noon PDT (3 p.m. EDT) on Thursday, Oct. 18, about the latest status of the Curiosity rover's mission to Mars.

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NASA's Cassini spacecraft obtained this image of a feature shaped like a hot cross bun in the northern region of Titan (left) that bears a striking resemblance to a similar feature on Venus (right).

October 16, 2012

What's Baking on Titan?

NASA's Cassini spacecraft spots curious surface features on Saturn's largest moon, including a "hot-cross bun" and outlines of vast southern seas.

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This illustrated timeline features milestones in the journey of NASA's Cassini spacecraft. Scroll up to launch Cassini's voyage.

October 15, 2012

A Long and Winding Road: Cassini Celebrates 15 Years

It's been 3.8 billion miles and a trunk full of memories for NASA's Cassini spacecraft, launched 15 years ago today.

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Bright Particle of Martian Origin in Scoop Hole

October 15, 2012

Rover's Second Scoop Discarded, Third Scoop Commanded

Commands will be sent to Curiosity today instructing the rover to collect a third scoop of soil from the "Rocknest" site of windblown Martian sand and dust.

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Trojan Colors Revealed (Artist's Concept)

October 15, 2012

NASA's WISE Colors in Unknowns on Jupiter Asteroids

Observations from NASA's WISE all-sky survey reveal new clues about Jovian Trojans, mysterious asteroids that orbit in front of and behind Jupiter in its path around the sun.

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Curiosity's Location During First Scooping

October 12, 2012

Curiosity Preparing for Second Scoop

On Sol 65 (Oct. 11, 2012) of the Mars Science Laboratory mission, NASA's Mars rover Curiosity completed several activities in preparation for collecting its second scoop of soil.

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Ready for Battle... Mountain

October 12, 2012

How to Hunt a Space Rock

A team of scientists from JPL needed some space. When a large fireball turned night into day over Battle Mountain, Nev. they knew they had their chance.

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Target: Jake Matijevic Rock

October 11, 2012

Mars Rock Touched by NASA Curiosity has Surprises

The first Martian rock NASA's Curiosity rover has reached out to touch presents a more varied composition than expected from previous missions.

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Artist concept showing the descent and landing of Huygens.

October 11, 2012

Bounce, Skid, Wobble: How Huygens Landed on Titan

New analysis of data from the Huygens probe shows a complex surface.

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First Scoop by Curiosity, Sol 61 Views

October 10, 2012

Work Resumes with First Scooped Sample

The team operating Curiosity decided on Oct. 9, 2012, to proceed with using the rover's first scoop of Martian material.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

October 9, 2012

NASA Hosts Teleconference About Mars Rover Progress

NASA will host a media teleconference at 11 a.m. PDT (2 p.m. EDT) on Thursday, Oct. 11, to provide a status update on the Curiosity rover's mission to Mars' Gale Crater.

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Voyager Team Receives Award

October 8, 2012

NASA's Voyager Receives 'Breakthrough Award'

With two spacecraft on the cusp of interstellar space, NASA's Voyager mission is honored by Popular Mechanics.

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Artist's concept of the Deep Impact spacecraft

October 4, 2012

Deep Impact Spacecraft Completes Rocket Burn

NASA's Deep Impact spacecraft completed a firing of its onboard rocket motors earlier today.

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Wheel Scuff Mark at 'Rocknest'

October 4, 2012

NASA Mars Curiosity Rover Prepares to Study Martian Soil

NASA's Curiosity rover is in a position on Mars where scientists and engineers can begin preparing the rover to take its first scoop of soil for analysis.

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Curiosity - Robot Geologist and Chemist in One!

October 3, 2012

NASA's Curiosity Rover Checks In on Mars Using Foursquare

NASA's Curiosity Mars rover checked in on Mars Wednesday using the mobile application Foursquare.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

October 2, 2012

NASA Hosts Teleconference About Mars Curiosity Rover Progress

NASA will host a media teleconference at 11 a.m. PDT (2 p.m. EDT) on Thursday, Oct. 4, to provide a status update on the Curiosity rover's mission to Mars' Gale Crater.

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Opportunity Eyes Rock Fins on Cape York, Sol 3058

September 28, 2012

Mars Rover Opportunity Working at 'Matijevic Hill'

NASA's Mars rover Opportunity, well into its ninth year on Mars, will work for the next several weeks or months at a site with some of the mission's most intriguing geological features.

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Remnants of Ancient Streambed on Mars

September 27, 2012

NASA Rover Finds Old Streambed on Martian Surface

Scientists are studying the images of stones cemented into a layer of conglomerate rock.

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This full view of the giant asteroid Vesta was taken by NASA's Dawn spacecraft

September 26, 2012

Giant Asteroid's Troughs Suggest Stunted Planet

Data from NASA's Dawn spacecraft suggest troughs sculpted around Vesta's middle are likely dropped blocks of terrain bounded by faults.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

September 26, 2012

NASA to Televise Mars Curiosity Rover Science Update Sept. 27

NASA will host a news conference at 11 a.m. PDT (2 p.m. EDT) Thursday, Sept. 27, to present science findings from the Curiosity rover's mission to Mars' Gale Crater.

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Map of Hydrated Minerals on Vesta

September 26, 2012

Dawn: Vesta Got Special Delivery of Hydrated Minerals

Observations by NASA's Dawn mission suggest that hydrated minerals were delivered to Vesta in a radically different way than how they were deposited on the moon.

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This image combines photographs taken by the Mars Hand Lens Imager

September 24, 2012

Curiosity Finishes Close Inspection of Rock Target

NASA's rover Curiosity touched a Martian rock with its robotic arm for the first time on Sept. 22, assessing what chemical elements are in the rock called "Jake Matijevic."

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Most Spectacularly Preserved Pitted Terrain on Vesta

September 20, 2012

Dawn Sees Hydrated Minerals on Giant Asteroid

NASA's Dawn spacecraft has revealed that the giant asteroid Vesta has its own version of ring around the collar.

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'Jake Matijevic' Contact Target for Curiosity

September 19, 2012

NASA Mars Rover Targets Unusual Rock Enroute to First Destination

NASA's Mars rover Curiosity has driven up to a football-size rock that will be the first for the rover's arm to examine.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

September 18, 2012

JPL to Stream Mars Curiosity Telecon

NASA will host a media teleconference at 11 a.m. PDT (2 p.m. EDT) tomorrow (Wednesday, Sept. 19), to provide a status update on the Curiosity rover's mission to Mars' Gale Crater.

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Juno Main Engine Firing

September 17, 2012

Juno's Two Deep Space Maneuvers are 'Back-To-Back Home Runs'

NASA's Juno spacecraft successfully executed a second Deep Space Maneuver, called DSM-2 last Friday, Sept. 14.

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Puzzling Little Martian Spheres That Don't Taste Like 'Blueberries'

September 14, 2012

NASA Mars Rover Opportunity Reveals Geological Mystery

NASA's long-lived rover Opportunity has returned an image of the Martian surface that is puzzling researchers.

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Say 'Ahh' on Mars

September 12, 2012

Mars Rover Curiosity Arm Tests Nearly Complete

NASA's Mars Curiosity team has almost finished robotic arm tests in preparation for the rover to touch and examine its first Martian rock.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

September 11, 2012

JPL to Stream Mars Curiosity Telecon and Lecture

NASA will host a media teleconference at 11 a.m. PDT (2 p.m. EDT) tomorrow (Wednesday, Sept. 12), to provide a status update on the Curiosity rover's mission to Mars' Gale Crater.

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Carbon-Dioxide Snowfall on Mars

September 11, 2012

NASA Observations Point to 'Dry Ice' Snowfall on Mars

NASA's Mars Reconnaissance Orbiter data have given scientists the clearest evidence yet of carbon-dioxide snowfalls on Mars.

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As NASA's Dawn spacecraft takes off for its next destination

September 11, 2012

Vesta in Dawn's Rear View Mirror

NASA's Dawn mission is releasing two parting views of the giant asteroid Vesta, using some of the last images taken by the spacecraft as it departed Vesta.

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Panorama of Curiosity's Belly Check

September 10, 2012

NASA Mars Rover Curiosity's Arm Wields Camera Well

The camera at the end of the robotic arm on NASA's Mars rover Curiosity spent a busy weekend taking photos from several arm positions.

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Opportunity Eyes Rock Fins on Cape York, Sol 3058

September 7, 2012

NASA Mars Exploration Rover Team to be Honored

The mission team for NASA's long-lived Mars Exploration Rovers Spirit and Opportunity will be awarded the Haley Space Flight Award.

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Camera on Curiosity's Arm as Seen by Camera on Mast

September 6, 2012

NASA Mars Rover Curiosity Begins Arm-Work Phase

After driving more than a football field's length since landing, NASA's Mars rover Curiosity is spending several days preparing for full use of the tools on its arm.

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Listening to Voyager Tales

September 5, 2012

Cheers, Voyager: 35 Years of Exploration

Thirty-five years ago today, NASA's Voyager 1 spacecraft launched on its mission of exploration. JPL hosted a birthday party in its honor.

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A Last Look Back at Vesta

September 5, 2012

Dawn has Departed the Giant Asteroid Vesta

Mission controllers received confirmation today that NASA's Dawn spacecraft has escaped from the gentle gravitational grip of the giant asteroid Vesta.

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Mars Rover Curiosity in Artist's Concept, Close-up

September 5, 2012

NASA to Host Telecon About Curiosity Rover Progress

NASA will host a media teleconference at 10 a.m. PDT (1 p.m. EDT) on Thursday, Sept. 6, to provide a status update on the Curiosity rover's mission to Mars' Gale Crater.

Read more

 
Artist concept of GRAIL mission.

August 31, 2012

NASA's GRAIL Moon Twins Begin Extended Mission Science

NASA's twin, lunar-orbiting Gravity Recovery and Interior Laboratory (GRAIL) spacecraft began data collection for the start of the mission's extended operations.

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artist's concept of the Juno spacecraft

August 30, 2012

NASA's Jupiter-Bound Juno Changes its Orbit

NASA's Juno spacecraft performed its first deep-space maneuver in its journey to Jupiter, firing its engine to refine its trajectory for a future Earth gravity assist.

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Artist's concept of Dawn and Vesta

August 30, 2012

NASA's Dawn Prepares for Trek Toward Dwarf Planet

NASA's Dawn spacecraft is on track to become the first probe to orbit and study two distant destinations, to help scientists answer questions about the formation of our solar system.

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Martian Soil on Curiosity's Wheels After Sol 22 Drive

August 29, 2012

NASA Curiosity Rover Begins Eastbound Trek on Martian Surface

NASA's Mars rover Curiosity has set off from its landing vicinity on a trek to a science destination about a quarter mile (400 meters) away, where it may begin using its drill.

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Colorful Colossuses and Changing Hues

August 29, 2012

Saturn and its Largest Moon Reflect Their True Colors

Posing for portraits for NASA's Cassini spacecraft, Saturn and its largest moon, Titan, show spectacular colors in a quartet of images being released today.

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Curiosity Leaves Its Mark

August 29, 2012

Rover Leaves Tracks in Morse Code

A Morse code pattern imprinted in the track marks of NASA's Curiosity will help the rover drive more accurately.

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will.i.am tweets after his song is beamed from NASA's Mars rover Curiosity back to Earth

August 28, 2012

Curiosity Rover Plays First Song Transmitted from Another Planet

For the first time in history, a recorded song has been beamed back to Earth from another planet.

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NASA Administrator Charles Bolden

August 27, 2012

First Recorded Voice from Mars

The following statement by NASA Administrator Charles Bolden was returned to Earth via the Mars Curiosity rover.

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Layers at the Base of Mount Sharp

August 27, 2012

NASA Rover Returns Voice and Telephoto Views from Mars

NASA's Mars Curiosity has debuted the first recorded human voice that traveled from Earth to another planet and back.

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Curiosity rover's Panorama with Mount Sharp

August 24, 2012

NASA Announces Aug. 27 Mars News Conference

NASA will hold a televised news conference at 2 p.m. PDT (5 p.m.EDT), Monday, Aug. 27, at NASA's Jet Propulsion Laboratory in Pasadena, Calif., about the activities of its Curiosity rover mission on Mars.

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This 360-degree panorama shows evidence of a successful first test drive for NASA's Curiosity rover

August 22, 2012

NASA Mars Rover Begins Driving at Bradbury Landing

NASA's Mars rover Curiosity has begun driving from its landing site, which scientists announced today they have named for the late author Ray Bradbury.

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Part of the deck of NASA's Curiosity rover

August 21, 2012

NASA to Hold Televised Curiosity Rover Media Briefing Aug. 22

NASA will hold a televised news conference at 11:30 a.m. PDT (2:30 p.m. EDT) on Wednesday, Aug. 22, at the Jet Propulsion Laboratory in Pasadena, Calif., to update media on the progress of its Curiosity rover mission on Mars.

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Wiggle in the Gravel

August 21, 2012

NASA's Curiosity Studies Mars Surroundings, Nears Drive

NASA's Mars rover Curiosity has been investigating the Martian weather around it and the soil beneath it, as its controllers prepare for the car-size vehicle's first drive on Mars.

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The Entry, Descent and Landing War Room

August 21, 2012

First Words of Safe Landing on Mars - Tango Delta Nominal

The entry, descent and landing of NASA's new Mars rover was full of unknowns - including when was the right time to declare Curiosity safe and sound on the surface.

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Artist's rendition of the formation of rocky bodies in the solar system

August 20, 2012

New Insight on Mars Expected from New NASA Mission

On Aug. 20, NASA announced the selection of InSight, a new Discovery-class mission that will probe Mars at new depths by looking into the deep interior of Mars.

Read more

 
Curiosity Extends Arm for First Time on Mars

August 20, 2012

Curiosity Stretches its Arm

NASA's Mars rover Curiosity flexed its robotic arm today for the first time since before launch in November 2011.

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Artist rendition of the proposed InSight (Interior exploration using Seismic Investigations, Geodesy and Heat Transport) Lander.

August 20, 2012

New NASA Mission to Take First Look Deep Inside Mars

NASA has selected a new mission, set to launch in 2016, that will take the first look into the deep interior of Mars to study its evolution compared with other rocky planets.

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Voyager 2 Launch

August 20, 2012

Voyager at 35: Break on Through to the Other Side

First of the Voyager spacecraft launched 35 years ago today.

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Coronation, the fist target of the Curiosity rover's ChemCam instrument

August 19, 2012

Rover's Laser Instrument Zaps First Martian Rock

Today, NASA's Mars rover Curiosity fired its laser for the first time on Mars, using the beam from a science instrument to interrogate a rock called "Coronation."

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Part of the deck of NASA's Curiosity rover

August 19, 2012

NASA Announces Curiosity Rover Media Events Schedule

NASA will host several media teleconferences and/or news conferences to provide Curiosity rover mission updates in the coming weeks.

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Glenelg Intrigue

August 17, 2012

NASA Curiosity Team Pinpoints Site for First Drive

The scientists and engineers of NASA's Curiosity rover mission have selected the first driving destination for their one-ton, six-wheeled mobile Mars laboratory.

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This full-resolution image shows part of the deck of NASA's Curiosity rover taken from one of the rover's Navigation cameras looking toward the back left of the rover.

August 16, 2012

NASA to Host Curiosity Rover Teleconference Aug. 17

NASA will host a media teleconference at 10:30 a.m. PDT (1:30 p.m. EDT), Friday, Aug. 17, to provide a status update on the Curiosity rover's mission to Mars' Gale Crater.

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Curiosity in Exaggerated Color

August 14, 2012

Orbiter Views NASA's New Mars Rover in Color

The first color image taken from orbit showing NASA's rover Curiosity on Mars shows details of the layered bedrock in Gale Crater that the rover is starting to investigate.

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This artist's concept shows NASA's Dawn spacecraft orbiting the giant asteroid Vesta.

August 13, 2012

Dawn Engineers Assess Reaction Wheel

Engineers are working on part of a system that helps the Dawn spacecraft point precisely. The rest of the spacecraft is otherwise healthy.

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A Clear Look at the Rover Deck

August 13, 2012

NASA Hosts Teleconference About Curiosity Rover Progress

NASA will host a media teleconference at 10 a.m. PDT (1 p.m. EDT) on Tuesday, Aug. 14, to provide a status update on the Curiosity rover's mission to Mars' Gale Crater.

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President Barack Obama talks on the phone with NASA's Curiosity Mars rover team

August 13, 2012

NASA Mars Rover Team Hears from President Obama

President Barack Obama called to congratulate members of NASA's Curiosity Mars rover team at the agency's Jet Propulsion Laboratory in Pasadena, Calif. Monday (Aug. 13).

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First Hi-Res Color Mosaic of Curiosity's Mastcam Images

August 11, 2012

Curiosity Sends High-Resolution Color Images from Gale Crater

NASA's Curiosity rover has returned high-resolution color images of its surroundings on Mars that reveal a landscape not unlike portions of the southwestern United States.

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Traces of Landing

August 10, 2012

NASA Curiosity Mars Rover Installing Smarts for Driving

NASA's Mars rover Curiosity will spend its first weekend on Mars transitioning to software better suited for tasks ahead, such as driving and using its strong robotic arm.

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Gale Crater Vista, in Glorious Color

August 9, 2012

NASA's Curiosity Beams Back a Color 360 of Gale Crater

The first images from Curiosity's color Mast Camera, or Mastcam, have been received by scientists at NASA's Jet Propulsion Laboratory in Pasadena, Calif.

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Artist's concept of Curiosity's entry, descent and landing

August 9, 2012

Timeline of Major Mission Events During Curiosity's Landing

Curiosity's Entry, Descent and Landing team has provided a timeline of critical mission events that occurred on the evening of Aug. 5 PDT (early on Aug. 6 EDT).

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Rover's Self Portrait

August 8, 2012

First 360-Degree Panorama From NASA's Curiosity Mars Rover

Remarkable image sets from NASA's Curiosity rover and Mars Reconnaissance Orbiter are continuing to develop the story of Curiosity's landing and first days on Mars.

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NASA's Mars Science Laboratory Image

August 7, 2012

Orbiter Images NASA's Martian Landscape Additions

Monday night, NASA's Mars Reconnaissance Orbiter imaged the Curiosity rover and the components that helped it survive its ordeal from space to its present location on Mars.

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Curiosity's Heat Shield in View

August 6, 2012

New Mars Rover Beams Back Images Showing its Descent

Earlier today, just hours after NASA's Curiosity rover landed on Mars, a select group of images taken by the onboard Mars Descent Imager, or MARDI, were beamed back to Earth.

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NASA's Curiosity rover and its parachute were spotted by NASA's Mars Reconnaissance Orbiter as Curiosity descended to the surface on Aug. 5 PDT (Aug. 6 EDT).

August 6, 2012

NASA's Curiosity Rover Caught in the Act of Landing

An image from the High Resolution Imaging Science Experiment (HiRISE) camera aboard NASA's Mars Reconnaissance Orbiter captured the Curiosity rover still connected to its 51-foot-wide (almost 16 meter) parachute as it descended towards its landing site at Gale Crater.

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Curiosity's Early Views of Mars

August 6, 2012

NASA's New Mars Rover Sends Higher-Resolution Image

About two hours after landing on Mars and beaming back its first image, NASA's Curiosity rover transmitted a higher-resolution image of its new Martian home, Gale Crater.

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This is one of the first images taken by NASA's Curiosity rover, which landed on Mars the evening of Aug. 5 PDT (morning of Aug. 6 EDT).

August 5, 2012

NASA Lands Car-Size Rover Beside Martian Mountain

NASA's most advanced Mars rover Curiosity has landed on the Red Planet.

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artist's still shows how NASA's Curiosity rover will communicate with Earth

August 5, 2012

Curiosity Rover Just Hours from Mars Landing

NASA's Mars Science Laboratory spacecraft is healthy and right on course for a landing in several hours that will be one of the most difficult feats of robotic exploration ever attempted.

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JPL's Mission Support Area (MSA), shown in this panorama

August 4, 2012

Explore A Room With a Mars View

New panorama gives viewers an inside look at the room where mission team members will guide NASA's Curiosity rover through its entry, descent and landing on Mars.

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This artist's scoreboard displays a fictional game between Mars and Earth, with Mars in the lead.

August 4, 2012

Mars Tugging on Approaching NASA Rover Curiosity

The gravitational tug of Mars is now pulling NASA's car-size geochemistry laboratory, Curiosity, in for a suspenseful landing in less than 40 hours.

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Seventeen Cameras on Curiosity

August 3, 2012

What to Expect When Curiosity Starts Snapping Pictures

Unlike a group of tourists just arriving on Mars, NASA's Curiosity rover will take a more careful approach to snapping its first images.

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Voyager 2 to Switch to Backup Thruster Set

August 3, 2012

Signs Changing Fast for Voyager at Solar System Edge

The pace of changes quicken at the boundary of interstellar space.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or present ability to sustain microbial life.

August 2, 2012

Newest NASA Mars Mission Connects Past and Future

NASA's newest Mars mission, landing in three days, will draw on support from missions sent to Mars years ago and will contribute to missions envisioned for future decades.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover along with an illustrated astronaut bird.

August 2, 2012

NASA Hosts Social Media Events Across Seven Agency Field Centers

NASA's social media followers at seven field centers will virtually come together at a NASA Social on Friday, Aug. 3, to preview the landing of the the Curiosity rover.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or present ability to sustain microbial life.

July 30, 2012

NASA Announces News Activities for Mars Landing

The public is invited to tune in for a series of news briefings from NASA's Jet Propulsion Laboratory in Pasadena, Calif., for the upcoming landing of NASA's Curiosity rover on Mars.

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This is an artist's concept of NASA's Mars Science Laboratory spacecraft during its cruise phase between launch and final approach to Mars.

July 28, 2012

Curiosity Rover on Track for Early August Landing

Eight days before reaching Mars, NASA's Mars Science Laboratory spacecraft performed a flight-path adjustment scheduled more than nine months ago.

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Artist's concept of NASA's Mars Odyssey spacecraft passing above Mars' south pole

July 24, 2012

Mars Orbiter Repositioned to Phone Home Mars Landing

NASA's Mars Odyssey spacecraft has successfully adjusted its orbital location to be in a better position to provide prompt confirmation of the August landing of the Curiosity rover.

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Image Credit: NASA/JPL-Caltech/SSI

July 18, 2012

Cassini Spots Daytime Lightning on Saturn

Saturn was playing the lightning storm blues. NASA's Cassini spacecraft has captured images of last year's storm on Saturn, the largest storm seen up-close at the planet, with bluish spots in the middle of swirling clouds.

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An artist's view of a Pioneer spacecraft heading into interstellar space.

July 17, 2012

Study Finds Heat is Source of 'Pioneer Anomaly'

Analysis shows the slight, but detectable effect of heat pushing back on NASA's Pioneer 10 and 11 explains unexpected slowing of the spacecraft.

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Interactive games featuring NASA's Mars rover Curiosity

July 16, 2012

Follow Your Curiosity: Some New Ways to Explore Mars

A "virtual rover experience" and a body-action video game are among the options for public participation in NASA's Mars Science Laboratory mission.

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The area where NASA's Curiosity rover will land on Mars Aug. 5, 2012

July 16, 2012

NASA's Car-Sized Rover Nears Daring Landing on Mars

NASA's most advanced planetary rover is on a precise course for an early August landing beside a Martian mountain to begin two years of unprecedented scientific detective work.

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NASA's Mars Odyssey spacecraft passes above Mars' south pole in this artist's concept illustration.

July 13, 2012

Orbiter Enters, Then Exits, Standby Safe Mode

NASA's Mars Odyssey orbiter experienced about 21 hours in a reduced-activity precautionary status ending at about 10 a.m. PDT (1 p.m. EDT) on Thursday, July 12.

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The Mars rover Curiosity is projected in 3-D using a new NASA app for iPad

July 11, 2012

NASA 3-D App Gives Public Ability to Experience Robotic Space Travel

A NASA-created application that brings some of the agency's robotic spacecraft to life in 3-D now is available for free on the iPhone and iPad.

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Artist's concept of the Mars rover Curiosity

July 11, 2012

NASA News Conference to Preview August Mars Rover Landing

NASA will hold a news conference at 10 a.m. PDT (1 p.m. EDT) Monday, July 16, to discuss the upcoming August landing of the most advanced robot ever sent to another world.

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True color image of Titan

July 10, 2012

The Titanian Seasons Turn, Turn, Turn

Images from NASA's Cassini spacecraft show a concentration of high-altitude haze and a vortex materializing at the south pole of Saturn's moon Titan, signs that the seasons are turning on Saturn's largest moon.

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Three Cassini images show a propeller-shaped structure created by an unseen moon in Saturn's A ring

July 9, 2012

Saturn's Rings are Back

NASA's Cassini spacecraft has changed its orbit so it can see Saturn's rings again. How did it do this?

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'Greeley Panorama' from Opportunity's Fifth Martian Winter (False Color)

July 5, 2012

Mars Panorama: Next Best Thing to Being There

A 360-degree view combining 817 separate images displays features that surrounded NASA's Mars rover Opportunity during a four-month winter work campaign.

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The Curiosity rover and its sky crane separate from the back which helped protect both during entry in the Martian atmosphere.

July 2, 2012

Fireworks Over Mars: The Spirit of 76 Pyrotechnics

Seventy-six pyrotechnic devices must fire on time during the descent of Mars Science Laboratory to the Martian surface on August 5.

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Inside Titan

June 28, 2012

Cassini Finds Likely Subsurface Ocean on Saturn Moon

Data from NASA's Cassini spacecraft have revealed Saturn's moon Titan likely harbors a layer of liquid water under its ice shell.

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NASA's Mars Odyssey spacecraft passes above Mars' south pole in this artist's concept illustration.

June 27, 2012

Longest-Lived Mars Orbiter is Back in Service

NASA's Mars Odyssey orbiter has resumed its science observations and its role as a Mars rover's relay, thanks to a spare part that had been waiting 11 years to be put to use.

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Curiosity - Robot Geologist and Chemist in One!

June 26, 2012

Curiosity Rover on Track for Early August Landing

A maneuver on Tuesday adjusted the flight path of NASA's Mars Science Laboratory spacecraft for delivering the rover Curiosity to a landing target beside a Martian mountain.

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Strong Jet in False Colors

June 25, 2012

Cassini Shows Why Jet Streams Cross-Cut Saturn

Scientists studying images from NASA's Cassini spacecraft have found that heat from within the planet powers the jet streams.

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NASA's Mars Odyssey spacecraft passes above Mars' south pole in this artist's concept illustration.

June 19, 2012

Orbiter Out of Precautionary 'Safe Mode'

NASA's Mars Odyssey orbiter has been taken out of a protective status called safe mode.

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Orbit and current location of asteroid 2011 AG5

June 15, 2012

NASA Releases Workshop Data and Findings on Asteroid 2011 AG5

Researchers anticipate that asteroid 2011 AG5, discovered in January 2011, will fly safely past and not impact Earth in 2040.

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This artist's concept shows NASA's two Voyager spacecraft exploring a turbulent region of space known as the heliosheath, the outer shell of the bubble of charged particles around our sun.

June 14, 2012

Data From NASA's Voyager 1 Point to Interstellar Future

New data from NASA's Voyager 1 indicate that the spacecraft is drawing ever closer to exiting our solar system and entering interstellar space.

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NASA's Mars Odyssey spacecraft passes above Mars' south pole in this artist's concept illustration.

June 14, 2012

Test of Spare Wheel Puts Orbiter on Path to Recovery

Mission controllers test a spare reaction wheel on NASA's Odyssey for potential use with two other reaction wheels in adjusting and maintaining the spacecraft's orientation.

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This artist's concept shows NASA's Dawn spacecraft orbiting the giant asteroid Vesta.

June 14, 2012

Dawn Easing into its Final Science Orbit

NASA's Dawn spacecraft will begin its final prime science phase at Vesta on June 15.

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Saturn's rings lie in the distance as the Cassini spacecraft looks toward Titan

June 13, 2012

Cassini Sees Tropical Lakes on Saturn Moon

NASA's Cassini spacecraft has spied long-standing methane lakes, or puddles, in the "tropics" of Saturn's moon Titan.

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Revised Landing Target for Mars Rover Curiosity

June 11, 2012

NASA Mars Rover Team Aims for Landing Closer to Prime Science Site

NASA has narrowed the target for its most advanced Mars rover, Curiosity, which will land on the Red Planet in August.

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Thermal emission from erupting volcanoes on the jovian moon

June 8, 2012

Mapping Volcanic Heat on Io

A new study reveals information about the pattern of heat coming from volcanoes on the surface of Jupiter's fiery moon Io.

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Artist concept of Odyssey.

June 8, 2012

Orbiter Puts Itself into Standby Safe Mode

NASA's Mars Odyssey orbiter put itself into precautionary standby status June 8 Universal Time, when it detected unexpected characteristics in movement of one reaction wheel.

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Curiosity - Robot Geologist and Chemist in One!

June 7, 2012

NASA Hosts Telecon About Rover en Route to Mars Landing

NASA will host a media telecon on June 11 to provide a status update on the Aug. 5 landing of the most advanced rover ever to be sent to Mars.

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Artist concept of Cassini spacecraft. Image credit: NASA/JPL

June 6, 2012

Cassini Plasma Spectrometer Turns Off

The Cassini plasma spectrometer instrument (CAPS) aboard NASA's Cassini spacecraft was turned off between Friday, June 1 and Saturday, June 2, when a circuit breaker tripped off after the instrument experienced some unexpected voltage shifts.

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These infrared and visible light images have been combined and represented in colors that highlight the nature of the minerals on Vesta's surface

June 6, 2012

Dawn Mission Video Shows Vesta's Coat of Many Colors

A new video from NASA's Dawn mission reveals the dappled, variegated surface of the giant asteroid Vesta.

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Artist concept of lightning on Venus. Image credit: ESA

May 31, 2012

Venus, a Planetary Portrait of Inner Beauty

A Venus transit across the face of the sun is a relatively rare event -- occurring in pairs with more than a century separating each pair.

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Jet Blue

May 31, 2012

Enceladus Plume is a New Kind of Plasma Laboratory

Recent findings from NASA's Cassini mission reveal that Saturn's geyser moon Enceladus provides a special laboratory for watching unusual behavior of plasma, or hot ionized gas.

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NASA's GRAIL Spacecraft In Science Collection Phase

May 29, 2012

NASA Lunar Spacecraft Complete Prime Mission Ahead of Schedule

NASA's Gravity Recovery and Interior Laboratory (GRAIL) spacecraft downlinked its last lunar gravity data set for its prime mission today.

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1999 RQ36 Shape Model

May 24, 2012

NASA Scientist Figures Way to Weigh Space Rock

A scientist at NASA's Jet Propulsion Laboratory in Pasadena, Calif., has accurately determined the mass of a nearby asteroid from millions of miles away.

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Late Afternoon Shadows at Endeavour Crater on Mars

May 22, 2012

Dark Shadows on Mars: Scene from Durable NASA Rover

Late-afternoon shadows add punch to a false-color vista of Endeavour Crater on Mars from NASA's Opportunity rover.

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Tiny Methone

May 21, 2012

Cassini Spots Tiny Moon, Begins to Tilt Orbit

NASA's Cassini spacecraft beams back closest images of Methone as it approaches Saturn's largest moon, Titan.

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Simulated, edge-on view of our solar system

May 16, 2012

NASA Survey Counts Potentially Hazardous Asteroids

Observations from NASA's Wide-field Infrared Survey Explorer (WISE) have led to the best assessment yet of our solar system's population of potentially hazardous asteroids.

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Test Rover Aids Preparations in California for Curiosity Rover on Mars

May 11, 2012

Mojave Desert Tests Prepare for NASA Mars Roving

Engineers ran rover-mobility tests on California sand dunes this week in preparation for operating NASA's Curiosity rover after it lands in Mars' Gale Crater.

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NASA's Jupiter-bound Juno spacecraft tested its JunoCam instrument

May 10, 2012

NASA's Juno Spacecraft Images Big Dipper

En route to Jupiter, NASA's Juno mission has snapped a quick photo of a familiar sight in the nighttime sky--the Big Dipper.

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Mineral Diversity at Vesta's South Pole

May 9, 2012

NASA Dawn Mission Reveals Secrets of Large Asteroid

NASA's Dawn spacecraft provides the first orbital analysis of the giant asteroid Vesta, yielding new insights into its creation with terrestrial planets and Earth's moon.

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Looking Back at Greeley Haven After Opportunity's First Drive of 2012

May 9, 2012

Opportunity Rolling Again After Fifth Mars Winter

With its daily supply of solar energy increasing, NASA's Mars Exploration Rover Opportunity has driven off the sunward-tilted outcrop, Greeley Haven.

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Advancing Dune in Nili Patera, Mars

May 9, 2012

NASA Spacecraft Detects Changes in Martian Sand Dunes

NASA's Mars Reconnaissance Orbiter has revealed that movement in sand dune fields on the Red Planet occurs on a surprisingly large scale, about the same as in dune fields on Earth.

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This artist's concept shows NASA's Dawn spacecraft orbiting the giant asteroid Vesta.

May 7, 2012

NASA to Hold News Conference on Dawn Mission Results

NASA will host a news conference on Thursday, May 10, at 11 a.m. PDT (2 p.m. EDT) to present a new analysis of the giant asteroid Vesta using data from the agency's Dawn spacecraft.

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'Homestake' Vein in Color

May 3, 2012

Paydirt at 8-Year-Old Mars Rover's 'New Landing Site'

A crater NASA's Mars rover Opportunity drove for years to reach is paying off with evidence about wet environments older than any recorded at sites the rover has seen before.

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Raw, unprocessed image of Enceladus

May 2, 2012

Cassini, Saturn Moon Photographer

NASA's Cassini spacecraft successfully flies by Saturn's moons Enceladus and Dione.

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Artist concept of Cassini at Saturn. Image credit: NASA/JPL

May 1, 2012

Cassini to Probe Enceladus Gravity, Take Pictures

NASA's Cassini spacecraft will be making a close flyby of Saturn's icy moon Enceladus on May 2.

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Curiosity Touching Down, Artist's Concept

April 27, 2012

100 Days and Counting to NASA's Curiosity Mars Rover Landing

At 10:31 p.m. PDT today, April 27, (1:31 p.m. EDT), NASA's Mars Science Laboratory, carrying the one-ton Curiosity rover, will be within 100 days from the Martian surface.

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The Face of Phoebe

April 26, 2012

Cassini Finds Saturn Moon has Planet-Like Qualities

Data from NASA's Cassini mission reveal Saturn's moon Phoebe has more planet-like qualities than previously thought.

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Aquilia Area in Color

April 24, 2012

Dawn Reveals Secrets of Giant Asteroid Vesta

Findings from Dawn reveal new details about the giant asteroid Vesta, including its varied surface composition, sharp temperature changes and clues to its internal structure.

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Titan and Dione

April 24, 2012

Cassini Investigates Titan's Chemical Factory

Saturn's moon Titan has a thick, smoggy atmosphere that's one of the most complex chemical environments in the solar system. How long has this "factory" been in business?

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A meteor in the sky above Reno, Nevada on April 22, 2012. Image credit: Lisa Warren

April 24, 2012

Fireball Over California/Nevada: How Big Was It?

Scientists have a size estimate for an impressive fireball that was witnessed over California's Central Valley Sunday (4/22).

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Images from NASA's Cassini spacecraft

April 23, 2012

Cassini Sees Objects Blazing Trails in Saturn Ring

Images from NASA's Cassini spacecraft have revealed strange half-mile-sized objects punching through parts of Saturn's F ring, leaving glittering trails behind.

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A recent study finds that the lake known as Ontario Lacus on Saturn's moon Titan (left)

April 19, 2012

Cassini Finds Titan Lake is Like a Namibia Mudflat

Scientists with NASA's Cassini mission find that a lake on Saturn's moon Titan most resembles Etosha Pan in Namibia.

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Dawn Orbiting Vesta

April 18, 2012

Dawn Gets Extra Time to Explore Vesta

NASA's Dawn mission has received official confirmation that 40 extra days have been added to its exploration of the giant asteroid Vesta.

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Arc of Enceladus

April 16, 2012

Cassini Successfully Flies over Enceladus

NASA's Cassini spacecraft beams back images of the icy moons Enceladus and Tethys during its course through the Saturn system.

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NASA's Cassini spacecraft will make a close approach to the south polar region of Saturn's moon Enceladus on April 14, 2012.

April 13, 2012

Cassini to Dip into Enceladus Spray Again

Less than three weeks after its last swoop over the Saturn moon, NASA's Cassini spacecraft returns for an encore.

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This artist's concept features NASA's Mars Science Laboratory Curiosity rover next to its landing site at Gale Crater.

April 11, 2012

Live Public Talk: Mars Science Laboratory Landing Site

Join us in person at JPL, or virtually via the Internet, on April 12 for a public talk about Gale Crater, landing site of NASA's next Mars rover.

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Mars' Stringbean Twister

April 4, 2012

12-Mile-High Martian Dust Devil Caught In Act

A Martian dust devil roughly 12 miles high (20 kilometers) was captured whirling its way along the Amazonis Planitia region of Northern Mars on March 14.

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The Sagan Fellowship program, named after the late Carl Sagan, supports talented young scientists in their mission to explore the unknown.

April 2, 2012

NASA Announces 2012 Carl Sagan Fellows

NASA has announced the 2012 Sagan Exoplanet Fellowships, a program designed to encourage new talent in the area of exoplanet research.

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Enceladus Plume

March 28, 2012

Icy Moons through Cassini's Eyes

NASA's Cassini spacecraft successfully flies by Saturnian moons.

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'Mount Sharp' Inside Gale Crater, Mars

March 28, 2012

'Mount Sharp' on Mars Links Geology's Past and Future

A stack of geological chapters in the history book of Mars has attracted NASA's big new rover and takes an informal name from a geologist with early Mars missions.

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As the GRAIL twins (Ebb and Flow) fly over areas of greater and lesser gravity at 3,600 mph

March 27, 2012

Flying Formation - Around the Moon at 3,600 MPH

The act of two or more aircraft flying together in a disciplined, synchronized manner is one of the cornerstones of military aviation, as well as just about any organized air show.

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This is an artist's concept of NASA's Mars Science Laboratory spacecraft during its cruise phase between launch and final approach to Mars.

March 26, 2012

Mars-Bound NASA Craft Adjusts Path, Tests Instruments

NASA's Mars Science Laboratory spacecraft, halfway to Mars, adjusted its flight path today for delivery of the one-ton rover Curiosity to the surface of Mars in August.

Read more

 
Highlighting Plumes

March 26, 2012

Cassini to Make Closest Pass Yet over Enceladus South Pole

NASA's Cassini spacecraft will fly about 46 miles (74 kilometers) above the surface of the Saturnian moon Enceladus.

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NASA's Cassini-Huygens mission to Saturn was awarded the 2012 National Air

March 22, 2012

Cassini Mission Receives Air and Space Museum Award

The Smithsonian's National Air and Space Museum has bestowed its highest group honor, the Trophy for Current Achievement, on NASA's Cassini mission to Saturn.

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MoonKAM Looks Homeward

March 22, 2012

NASA GRAIL Returns First Student-Selected Moon Images

One of two NASA spacecraft orbiting the moon has beamed back the first student-requested pictures of the lunar surface from its onboard camera.

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Bright Rays from Canuleia Crater

March 21, 2012

Dawn Sees New Surface Features on Giant Asteroid

NASA's Dawn spacecraft has revealed unexpected details on the surface of the giant asteroid Vesta.

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These images, based on ones obtained by NASA's Cassini spacecraft

March 19, 2012

Cassini Sees Saturn Stressing out Enceladus

Direct observations linking the tidal pull of Saturn to jets on Enceladus are among highlights of NASA's Cassini mission discussed at the Lunar and Planetary Science Conference.

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Artist concept of Cassini spacecraft. Image credit: NASA/JPL

March 19, 2012

Cassini Plasma Spectrometer Resumes Operations

Cassini mission managers have received confirmation that the plasma spectrometer instrument was successfully turned on.

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Saturn

March 14, 2012

Cassini Garners Top Honor From Air and Space Museum

NASA's Cassini mission to Saturn, managed by the Jet Propulsion Laboratory, Pasadena, Calif., has received the top group honor from the Smithsonian's National Air and Space Museum - the Trophy for Current Achievement. Representatives for Cassini will receive the trophy on March 21 at a black-tie dinner in Washington, D.C.

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Following the path of one of Jupiter's jet streams

March 12, 2012

Cassini Spies Wave Rattling Jet Stream on Jupiter

New movies of Jupiter are the first to catch an invisible wave shaking up one of the giant planet's jet streams, an interaction that also takes place in Earth's atmosphere.

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Portrait of Rhea

March 12, 2012

Cassini Captures New Images of Icy Moon

Saturn's moon Rhea appears in glorious detail in new images obtained by NASA's Cassini spacecraft

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The Serpent Dust Devil of Mars

March 7, 2012

NASA Mars Orbiter Catches Twister in Action

A towering dust devil casts a serpentine shadow over the Martian surface in a new image from the high-resolution camera on NASA's Mars Reconnaissance Orbiter.

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Using a precision formation-flying technique, the twin GRAIL spacecraft will map the moon's gravity field, as depicted in this artist's rendering.

March 7, 2012

NASA's Twin GRAIL Spacecraft Begin Collecting Lunar Data

NASA's GRAIL twins have begun their science collection phase in lunar orbit.

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This view highlights tectonic faults and craters on Dione, an icy world that has undoubtedly experienced geologic activity since its formation.

March 2, 2012

Cassini Detects Hint of Fresh Air at Dione

NASA's Cassini spacecraft has "sniffed" molecular oxygen ions around Saturn's icy moon Dione, confirming the presence of a tenuous atmosphere.

Read more

 
Tenth Anniversary Image from Camera on NASA Mars Orbiter

February 29, 2012

Camera on NASA Mars Odyssey Tops Decade of Discovery

NASA's Mars Odyssey, the longest-working spacecraft ever sent to Mars, has now been sending home images for 10 years.

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Artist rendition of the proposed InSight (Interior exploration using Seismic Investigations, Geodesy and Heat Transport) Lander.

February 28, 2012

Proposed Mars Mission Has New Name

Proposed Discovery mission concept by JPL to investigate the formation and evolution of terrestrial planets by studying the deep interior of Mars now has a new name, InSight.

Read more

 
Snapshots of Titan's North Polar Cloud

February 23, 2012

The Many Moods of Titan

Recent data collected by NASA's Cassini spacecraft show a shifting, Earth-like environment at Saturn's moon Titan.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

February 9, 2012

Spacecraft Computer Issue Resolved

Engineers have found the root cause of a computer reset that occurred two months ago on NASA's Mars Science Laboratory and have determined how to correct it.

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Spirit Lander and Bonneville Crater in Color

February 8, 2012

New Views Show Old NASA Mars Landers

New color images from NASA's Mars Reconnaissance Orbiter show the agency's 2008 Phoenix Mars Lander and the lander that carried its rover Spirit to Mars in 2004.

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The Galaxy Evolution Explorer was launched on April 28, 2003.

February 7, 2012

NASA's Galaxy Evolution Explorer in Standby Mode

NASA's Galaxy Evolution Explorer was placed in standby mode today as engineers prepare to end mission operations, nearly nine years after the telescope's launch.

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NASA's Mars rover Curiosity with an inset of an instrument located at the end of it's robotic arm.

February 7, 2012

Mars-Bound NASA Rover Carries Coin for Camera Checkup

At least one object in photos NASA's Curiosity rover will transmit from Mars later this year will look familiar to all Americans: a Lincoln penny sent as a camera reference.

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NASA's Juno spacecraft passes in front of Jupiter in this artist's depiction.

February 2, 2012

NASA's Juno Spacecraft Refines its Path to Jupiter

NASA's solar-powered Juno spacecraft successfully refined its flight path Wednesday with the mission's first trajectory correction maneuver.

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South pole of the far side of the moon as seen from the GRAIL mission's Ebb spacecraft.

February 1, 2012

NASA Mission Returns First Video From Moon's Far Side

A camera aboard one of NASA's twin Gravity Recovery And Interior Laboratory (GRAIL) lunar spacecraft has returned its first unique view of the far side of the moon.

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Mars Science Laboratory Spacecraft During Cruise, Artist's Concept

January 27, 2012

Mars-Bound Instrument Detects Solar Burst's Effects

This week's solar storm is giving a NASA Mars-bound spacecraft a chance to gauge how such events would affect radiation exposure of future astronauts flying to Mars.

Read more

 
Sand dunes trapped in an impact crater in Noachis Terra on Mars

January 25, 2012

Photo from NASA Mars Orbiter Shows Wind's Handiwork

Martian dunes and sand ripples of mixed shapes and sizes form a striking pattern in a recent image from the high-resolution camera on NASA's Mars Reconnaissance Orbiter.

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The south pole of the giant asteroid Vesta

January 25, 2012

Vesta Likely Cold and Dark Enough for Ice

Roughly half of the giant asteroid Vesta is expected to be so cold, with so little sunlight, that water ice could have survived there for billions of years.

Read more

 
Opportunity's Eighth Anniversary View From 'Greeley Haven'

January 24, 2012

Durable NASA Rover Beginning Ninth Year of Mars Work

On the eighth anniversary of starting to explore Mars, NASA's rover Opportunity remains busy with new investigations.

Read more

 
Data from NASA's Cassini spacecraft show that the sizes and patterns of dunes on Saturn's moon Titan vary as a function of altitude and latitude.

January 23, 2012

Cassini Sees the Two Faces of Titan's Dunes

A new analysis of radar data reveals patterns tied to altitude and latitude.

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Artist's concept of NASA's Voyager spacecraft.

January 17, 2012

Voyager Instrument Cooling After Heater Turned off

The heater shut-off is a step in the careful management of diminishing electrical power.

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Using a precision formation-flying technique, the twin GRAIL spacecraft will map the moon's gravity field, as depicted in this artist's rendering.

January 17, 2012

Montana Students Pick Winning Names for Moon Craft

Twin NASA spacecraft that achieved orbit around the moon New Year's Eve and New Year's Day have new names, thanks to elementary students in Bozeman, Mont.

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Artist concept of Cassini spacecraft. Image credit: NASA/JPL

January 12, 2012

Cassini Testing Part of Its Radio System

The spacecraft has been communicating with Earth using an auxiliary oscillator.

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Artist concept of GRAIL mission.

January 12, 2012

NASA and Students to Announce Names for Moon Probes

NASA will host a news conference at 10 a.m. PST (1 p.m. EST), on Jan. 17, to announce the names selected from a nationwide student contest for the twin GRAIL spacecraft.

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Artist's concept illustrations show (left) the Mars Science Laboratory spacecraft during its voyage from Earth to Mars and (right)

January 11, 2012

Spacecraft Completes Biggest Maneuver

NASA's Mars Science Laboratory spacecraft successfully refined its flight path Wednesday with the biggest maneuver planned for the mission's journey between Earth and Mars.

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Mars Science Laboratory Spacecraft During Cruise, Artist's Concept

January 6, 2012

Mars Science Lab Maneuver Begins

NASA's Mars Science Laboratory spacecraft has begun firing thruster engines for the first and largest flight-path adjustment of the trip from Earth to Mars.

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Approaching 'Greeley Haven' on Endeavour Rim

January 5, 2012

'Greeley Haven' is Winter Workplace for Mars Rover

Researchers plan to keep NASA's Opportunity rover busy through Martian winter at a sun-facing site, "Greeley Haven," where a study of the planet's core has begun.

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Artist concept of GRAIL-B

January 1, 2012

NASA's Twin Grail Spacecraft Reunite in Lunar Orbit

The second of NASA's two Gravity Recovery And Interior Laboratory (GRAIL) spacecraft has successfully completed its planned main engine burn and is now in lunar orbit.

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A Geminid meteor

December 31, 2011

How to See the Best Meteor Showers of the Year: Tools, Tips and 'Save the Dates'

There are several major meteor showers to enjoy every year at various times, with some more active than others.

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Artist concept of GRAIL mission

December 31, 2011

First of NASA's GRAIL Spacecraft Enters Moon Orbit

The first of two NASA spacecraft to study the moon in unprecedented detail has entered lunar orbit.

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Artist concept of GRAIL mission

December 30, 2011

NASA's GRAIL-A Spacecraft 24 Hours Away From Moon

NASA's Gravity Recovery And Interior Laboratory (GRAIL)-A spacecraft is within 24 hours of its insertion burn that will place it into lunar orbit.

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the twin GRAIL spacecraft will map the moon's gravity field, as depicted in this artist's rendering.

December 28, 2011

NASA Twin Spacecraft on Final Approach for Moon Orbit

NASA's twin spacecraft to study the moon from crust to core are nearing their New Year's Eve and New Year's Day main-engine burns to place the duo in lunar orbit.

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Artist concept of GRAIL mission.

December 23, 2011

NASA Media Telecon on Probes' Moon Orbit Insertion

NASA will hold a media telecon at 11 a.m. PST on Dec. 28, to preview twin spacecraft being placed in orbit around the moon for the New Year.

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A Cosmic Wreath

December 22, 2011

WISE Presents a Cosmic Wreath

Sprigs of holly, a big red bow and silver bells appear to dress up this cosmic star-forming wreath, captured by NASA's Wide-field Infrared Survey Explorer (WISE).

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Titan and Dione

December 22, 2011

NASA's Cassini Delivers Holiday Treats From Saturn

No team of reindeer, but radio signals flying clear across the solar system from NASA's Cassini spacecraft have delivered a holiday package of glorious images.

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Closer and Closer to the Vesta Surface

December 21, 2011

Dawn Obtains First Low Altitude Images of Vesta

NASA's Dawn spacecraft has sent back the first images of the giant asteroid Vesta from its low-altitude mapping orbit.

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Radar in Mars Orbit Maps North Polar Deposits

December 19, 2011

Radar in Mars Orbit Maps North Polar Deposits

An American-Italian radar instrument orbiting Mars has mapped the three-dimensional structure of layers beneath the surface in the planet's north polar region.

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Mars Science Laboratory Spacecraft During Cruise, Artist's Concept

December 13, 2011

NASA Mars-Bound Rover Begins Research in Space

NASA's car-sized Curiosity rover has begun monitoring space radiation during its 8-month trip from Earth to Mars.

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NASA's Cassini spacecraft obtained this unprocessed image  on  Dec. 12, 2011

December 12, 2011

Portraits of Moons Captured by Cassini

NASA's Cassini spacecraft finishes close flyby of the Saturnian moon Dione on the way to Titan.

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Dawn Orbiting Vesta

December 12, 2011

NASA's Dawn Spirals Down to Lowest Orbit

PASADENA, Calif. - NASA's Dawn spacecraft successfully maneuvered into its closest orbit around the giant asteroid Vesta today, beginning a new phase of science observations.

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In, Around, Beyond Rings

December 9, 2011

Cassini to Make a Double Play

NASA's Cassini spacecraft will be collecting images and data during close flybys of Saturn's moons Dione and Titan.

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AEGIS Imaging Mars

December 8, 2011

NASA Presents Software of the Year Award

Autonomous Exploration for Gathering Increased Science (AEGIS) software operating on the Mars Exploration Rover Opportunity, is NASA's 2011 Software of the Year recipient.

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The NASA/French Space Agency Jason-1 satellite celebrates 10 years in orbit this week

December 7, 2011

NASA's Jason-1 Achieves a One-Decade Landmark

In Greek mythology, Jason embarked on an epic quest for the Golden Fleece. Today, NASA's modern-day Jason-1 achieves its own heroic status, marking its 10th birthday.

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'Homestake' Vein in Color

December 7, 2011

NASA Mars Rover Finds Mineral Vein Deposited by Water

NASA's Mars Exploration Rover Opportunity has found bright veins of a mineral, apparently gypsum, deposited by water.

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This scene is from early spring in the northern hemisphere of Mars.

December 7, 2011

New Tool for Touring Mars Using Detailed Images

It's now easier than ever to explore Mars in the great detail offered by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter.

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This image using color data obtained by the framing camera aboard NASA's Dawn spacecraft

December 5, 2011

New NASA Dawn Visuals Show Vesta's 'Color Palette'

New color data from NASA's Dawn mission give scientists an inside look at the chemical composition of giant asteroid Vesta.

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Artist concept of Voyager 1 encountering a stagnation region

December 5, 2011

NASA's Voyager Hits New Region at Solar System Edge

NASA's Voyager 1 spacecraft has entered a new region between our solar system and interstellar space.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

December 1, 2011

Course Excellent, Adjustment Postponed

Excellent launch precision for NASA's Mars Science Laboratory mission has forestalled the need for an early trajectory correction maneuver, now not required for a month or more.

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Southern Enceladus in Radar View

December 1, 2011

What's That Sparkle in Cassini's Eye?

NASA's Cassini spacecraft obtains the first-ever synthetic aperture radar images of Saturn's moon Enceladus

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Artist's concept of the Deep Impact spacecraft

December 1, 2011

NASA's Deep Impact Spacecraft Eyes the Future

NASA's Deep Impact spacecraft completed a 140-second firing of its onboard rocket motors on Thursday, Nov. 24.

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Still from a 3-D video incorporating images from NASA's Dawn spacecraft

November 30, 2011

Dawn Soars Over Asteroid Vesta in 3-D

Glide over the giant asteroid Vesta with NASA's Dawn spacecraft in a new 3-D video.

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NASA's Mars Science Laboratory spacecraft, sealed inside its payload fairing atop the United Launch Alliance Atlas V rocket

November 26, 2011

NASA Launches Most Capable and Robust Rover to Mars

NASA began a historic voyage to Mars with the Nov. 26 launch of the Mars Science Laboratory, which carries a car-sized rover named Curiosity.

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NASA's Mars Science Laboratory soars through the sky aboard an Atlas V rocket.

November 26, 2011

Mars Science Laboratory in Good Health

Engineers have received data from NASA's Mars Science Laboratory showing that all systems are operating normally. The approximately eight-month journey to Mars is underway.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or present ability to sustain microbial life.

November 21, 2011

NASA Updates Prelaunch Events for Mars Science Lab

NASA has updated information about the news conferences and other events for the agency's Mars Science Laboratory Curiosity rover launch.

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Movement in Martian Dune Field

November 17, 2011

NASA Orbiter Catches Mars Sand Dunes in Motion

Images from NASA's Mars Reconnaissance Orbiter show sand dunes and ripples moving across the surface of Mars at dozens of locations and shifting up to several yards.

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Storm Tail in False Color

November 16, 2011

Cassini Chronicles Life of Saturn's Giant Storm

New images and animated movies from NASA's Cassini spacecraft chronicle the birth and evolution of the colossal storm that ravaged the northern face of Saturn for nearly a year.

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Europa's

November 16, 2011

NASA Probe Data Show Liquid Water Evidence on Europa

NASA's Galileo mission data have provided evidence of what appears to be a subsurface body of liquid water, with a volume equal to the Great Lakes, on Jupiter's moon, Europa.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover along with an illustrated astronaut bird.

November 16, 2011

NASA Hosts 150 Twitter Followers at Mars Rover Launch

NASA has invited 150 followers of the agency's Twitter account to a two-day launch Tweetup on Nov. 23 and 25 at the agency's Kennedy Space Center in Florida.

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This artist concept of Jupiter's Icy Moon Europa

November 15, 2011

NASA Hosting Science Update About Jupiter's Icy Moon Europa

NASA will host a Science Update at 10 a.m. PST (1 p.m. EST) on Wednesday, Nov. 16, to discuss new theories concerning Jupiter's icy moon Europa.

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Artist's concept of NASA's Voyager spacecraft. Image credit: NASA/JPL-Caltech

November 14, 2011

Voyager 2 Completes Switch to Backup Thruster Set

NASA's Voyager 2 has successfully switched to the backup set of thrusters that controls the roll of the spacecraft.

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This radar image of asteroid 2005 YU55 was obtained on Nov. 7, 2011, at 11:45 a.m.

November 11, 2011

NASA Releases Updated Radar Movie of Asteroid 2005 YU55

NASA Scientists working with the Deep Space Network antenna at Goldstone, Calif., have released a second, longer, more refined movie clip of asteroid 2005 YU55.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover

November 10, 2011

NASA Sets Mars Science Laboratory Launch Coverage

The launch of NASA's Mars Science Laboratory with the Curiosity rover has been delayed one day, until Saturday, Nov. 26, at 7:02 a.m. PST (10:02 a.m. EST).

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Preparing in Florida for Launch to Mars

November 10, 2011

NASA Ready for November Launch of Car-Size Mars Rover

NASA's most advanced mobile robotic laboratory, which will examine one of the mostintriguing areas on Mars, is in final preparations for a Nov. 25 launch from Florida.

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This radar image of asteroid 2005 YU55 was obtained on Nov. 7, 2011, at 11:45 a.m. PST

November 8, 2011

NASA Releases Radar Movie of Asteroid 2005 YU55

Scientists working with the 230-foot-wide (70-meter) Deep Space Network antenna at Goldstone, Calif., have generated a short movie clip of asteroid 2005 YU55.

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Artist's concept of NASA's Mars Science Laboratory rover

November 8, 2011

NASA to Hold Media Briefing About Mars Rover Launch

NASA will hold a news conference Thursday, Nov. 10, to discuss the upcoming launch of the Mars Science Laboratory, with the largest and most capable rover going to another planet.

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This radar image of asteroid 2005 YU55 was obtained on Nov. 7, 2011, at 11:45 a.m. PST

November 7, 2011

NASA Captures New Images of Large Asteroid Passing Earth

NASA's Deep Space Network antenna in Goldstone, Calif. has captured new radar images of Asteroid 2005 YU55 passing close to Earth.

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NASA's Cassini spacecraft obtained this unprocessed image of Enceladus

November 7, 2011

Cassini Flyby Focuses on Saturn's Moon Enceladus

Saturn's moon Enceladus shows its icy face and famous plumes in raw, unprocessed images captured by NASA's Cassini spacecraft during its successful flyby on Nov. 6, 2011.

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This artist's concept shows NASA's two Voyager spacecraft exploring a turbulent region of space known as the heliosheath

November 5, 2011

Voyager 2 to Switch to Backup Thruster Set

NASA's Deep Space Network personnel sent commands to the Voyager 2 spacecraft Nov. 4 to switch to the backup set of thrusters that controls the roll of the spacecraft.

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Enceladus 'E-16' Flyby: Radar Looks at Enceladus

November 3, 2011

NASA's Cassini Makes a New Pass at Enceladus

NASA's Cassini spacecraft will acquire the first detailed radar images of Saturn's moon Enceladus during a flyby on Sunday, Nov. 6.

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Clay Minerals in Craters and Escarpments on Mars

November 2, 2011

NASA Study of Clays Suggests Watery Mars Underground

A new NASA study suggests if life ever existed on Mars, the longest lasting habitats were most likely below the Red Planet's surface.

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Mysteries of the Solar System slideshow

October 31, 2011

'Mysteries' Slideshow Highlights Spooky Side of Space

A disappearing Martian 'bunny,' the Saturn 'hex' and Jupiter's scar face are all featured in an all-new, mysterious slideshow from JPL's Education Office.

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This radar image of asteroid 2005 YU55 was generated from data taken in April of 2010 by the Arecibo Radar Telescope in Puerto Rico.

October 26, 2011

NASA in Final Preparations for Nov. 8 Asteroid Flyby

NASA scientists will be tracking asteroid 2005 YU55 with antennas of the agency's Deep Space Network at Goldstone, Calif., as the space rock safely flies past Earth slightly closer than the moon's orbit on Nov. 8.

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Trajectory of comet Elenin.

October 25, 2011

NASA Says Comet Elenin Gone and Should Be Forgotten

Latest indications are this relatively small comet has broken into even smaller, even less significant, chunks of dust and ice.

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These two views of Saturn's moon Enceladus were made from data obtained by Cassini spacecraft

October 20, 2011

Latest Cassini Images of Enceladus on View

This raw, unprocessed image of Enceladus and its jets was taken on Oct. 19, 2011.

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Neutron Generator of Instrument for Detecting Water-Bearing Minerals

October 20, 2011

Mars Rover Carries Device for Underground Scouting

Russia has provided a neutron-shooting instrument called DAN that will enable NASA's next Mars rover to detect water-bearing minerals buried underneath the rover.

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Bursting at the Seams

October 18, 2011

Orion's Belt Lights Up Cassini's View of Enceladus

NASA's Cassini mission will take advantage of the position of two of the three stars in Orion's belt when the spacecraft flies by Saturn's moon Enceladus on Wed., Oct. 19.

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Capturing the Surface of Asteroid Vesta

October 12, 2011

NASA's Dawn Science Team Presents Early Science Results

Scientists with NASA's Dawn mission have provided details about the southern hemisphere of Vesta, which boasts one of the largest mountains in the solar system.

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Oblique View of Vesta's South Polar Region

October 10, 2011

New View of Vesta Mountain From NASA's Dawn Mission

A new image from NASA's Dawn spacecraft shows a mountain three times as high as Mt. Everest, amidst the topography in the south polar region of the giant asteroid Vesta.

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Approaching Endeavour Crater, Sol 2,680

October 10, 2011

Video Documents Three-Year Trek on Mars by NASA Rover

A sequence of images, each taken at the end of a Martian day's drive, and a soundtrack from rover accelerometer data make a unique audio-visual record of a trek on Mars.

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the twin GRAIL spacecraft will map the moon's gravity field, as depicted in this artist's rendering.

October 6, 2011

NASA's Moon Twins Going Their Own Way

NASA's Gravity Recovery And Interior Laboratory (GRAIL)-B spacecraft successfully executed its first flight path correction maneuver Wednesday, Oct. 5.

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Connecting Curiosity’s Heat Shield and Back Shell

October 5, 2011

Mars Science Laboratory Meets its Match in Florida

In a "match made for Mars," major components of NASA's Mars Science Laboratory have been connected at the Kennedy Space Center in Florida, several weeks before launch.

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Artist concept of GRAIL mission. Grail will fly twin spacecraft in tandem orbits around the moon to measure its gravity field in unprecedented detail.

October 3, 2011

NASA Invites Students to Name Moon-Bound Spacecraft

NASA has a class assignment for U.S. students: help the agency give the twin spacecraft headed to orbit around the moon new names.

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Artist concept of Mars Exploration Rover. Image credit: NASA/JPL-Caltech

October 3, 2011

NASA Mars Rovers Win Popular Mechanics 'Breakthrough' Award

NASA Mars rovers Spirit and Opportunity, and the team that made and operated them, will receive a lifetime achievement award from Popular Mechanics magazine this month.

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Cassini Catches Enceladus in Action

October 3, 2011

Saturn's Geyser Moon Enceladus Shows off for NASA's Cassini

NASA's Cassini spacecraft successfully completed its Oct. 1 flyby of Saturn's moon Enceladus and its dramatic plumes of water vapor and ice.

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In this image of Vesta north is up and the upper right corner is to the northeast.

September 30, 2011

NASA's Dawn Spacecraft Begins New Vesta Mapping Orbit

NASA's Dawn spacecraft has completed a gentle spiral into its new science orbit for an even closer view of the giant asteroid Vesta.

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NEOWISE observations indicate that there are about 20,500

September 29, 2011

NASA Space Telescope Finds Fewer Asteroids Near Earth

New observations by NASA's Wide-field Infrared Survey Explorer, or WISE, show there are significantly fewer near-Earth asteroids in the mid-size range than previously thought.

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September 28, 2011

JPL Participates in Space-Themed Corn Maze

The seven participating farms around the country planted and designed NASA-themed corn mazes.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover along with an illustrated astronaut bird.

September 28, 2011

NASA Announces Tweetup for Mars Rover Launch

NASA will host a two-day launch Tweetup for 150 of its Twitter followers on Nov. 23 and 25 at the agency's Kennedy Space Center in Florida.

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Artist's concept of the Wide-field Infrared Survey Explorer

September 26, 2011

NASA to Host News Conference on Asteroid Search Findings

NASA will hold a news conference at 1 p.m. EDT (10 a.m. PDT) on Thurs., Sept. 29, to reveal near-Earth asteroid findings and implications for future research.

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Water vapor and ice erupt from Saturn's moon Enceladus, the source of a newly discovered donut-shaped cloud around Saturn.

September 21, 2011

Saturn's Moon Enceladus Spreads Its Influence

Chalk up one more feat for Saturn's intriguing moon Enceladus. The small, dynamic moon spews out dramatic plumes of water vapor and ice -- first seen by NASA's Cassini spacecraft in 2005.

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Searching for the Origins of the Dinosaur-Killing Asteroid

September 19, 2011

Origin of Dinosaur-Killing Asteroid Remains a Mystery

The family of asteroids some believed was responsible for the demise of the dinosaurs is not likely the culprit according to new observations.

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A quintet of Saturn's moons come together in the Cassini spacecraft's field of view for this portrait.

September 16, 2011

Cassini Presents Saturn Moon Quintet

NASA's Cassini spacecraft captures five Saturnian moons in one image. Janus, Pandora, Enceladus, Mimas, Rhea and Saturn's rings are depicted in crisp grayscale.

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Viewing the South Pole of Vesta

September 16, 2011

NASA's Dawn Collects a Bounty of Beauty from Vesta

A new video from NASA's Dawn spacecraft takes us on a flyover journey above the surface of the giant asteroid Vesta.

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Shadow Across 'Chester Lake' on Endeavour Rim, Sol 2710

September 14, 2011

NASA Rover Inspects Next Rock at Endeavour

The second rock that NASA's Mars Exploration Rover Opportunity is examining in its new neighborhood offers a taste of bedrock.

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Memorial Image Taken on Mars on Sept. 11, 2011

September 12, 2011

Memorial Image Taken on Mars on September 11, 2011

A view of a memorial to victims of the Sept. 11, 2001, attacks on the World Trade Center towers was taken on Mars yesterday, on the 10th anniversary of the attacks.

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NASA's GRAIL mission blasts off from Cape Canaveral Air Force Station, Fla. Image credit: NASA

September 10, 2011

NASA Launches Mission to Study Moon From Crust to Core

NASA's twin lunar Gravity Recovery and Interior Laboratory (GRAIL) spacecraft launched from Cape Canaveral, Florida at 9:08 a.m. EDT (6:08 a.m. PDT)Saturday, Sept. 10.

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NASA's GRAIL Mission Lifts Off

September 10, 2011

NASA GRAIL Mission to the Moon Underway

NASA's GRAIL mission to study the moon from crust to core successfully lifted off from Cape Canaveral Air Force Station's Pad SLC-17B at 9:08 a.m. EDT (6:08 a.m. PDT).

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NASA's GRAIL twin spacecraft await launch atop a United Launch Alliance Delta II rocket at Cape Canaveral Air Force Station, Fla.

September 10, 2011

Launch Postponed Until Saturday

The launch of NASA's Gravity Recovery and Interior Laboratory mission has been postponed until Saturday, Sept. 10, with the first opportunity at 5:29 a.m. PDT (8:29 a.m. EDT).

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These images show the various stages of pre-launch preparations of NASA's twin GRAIL spacecraft

September 10, 2011

GRAIL Launch Milestones

NASA's GRAIL mission blasts off from Cape Canaveral Air Force Station, Fla.

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Artist concept of Mars Reconnaissance Orbiter.

September 8, 2011

Orbiter Resumes Use of Camera

Operators of NASA's Mars Reconnaissance Orbiter are resuming use of the mission's highest resolution camera following a second precautionary shutdown in two weeks.

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The piece of metal with the American flag on it in this image of a NASA rover on Mars.

September 8, 2011

Tributes to Terrorism Victims are on Mars

Two interplanetary memorials to victims of the Sept. 11, 2001, attacks reside on Mars in tools from New York used by NASA's Mars rovers Spirit and Opportunity.

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NASA's GRAIL twin spacecraft await launch atop a United Launch Alliance Delta II rocket at Cape Canaveral Air Force Station, Fla.

September 8, 2011

NASA GRAIL Moon Mission Launch Rescheduled

The launch of a Delta II vehicle carrying NASA's Gravity Recovery and Interior Laboratory (GRAIL) was scrubbed today, Thursday, Sept. 8, due to weather.

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NASA's new Web-based application

September 2, 2011

NASA Gives Public New Internet Tool to Explore the Solar System

NASA is giving the public the power to journey through the solar system using a new interactive Web-based tool.

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This artist's concept of an astronaut bird on the moon illustrates the space enthusiast community on Twitter.

September 1, 2011

NASA Invites 150 Twitter Followers to Lunar Launch

NASA has invited 150 followers of the agency's Twitter accounts to a two-day launch Tweetup Sept. 7-8.

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Opportunity at Work Examining 'Tisdale 2,' Sol 2695

September 1, 2011

NASA's Mars Rover Opportunity Begins Study of Martian Crater

The initial work of NASA's Mars rover Opportunity at its new location on Mars shows surface compositional differences from anything it has studied in its first 7.5 years on Mars.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or present ability to sustain microbial life.

August 31, 2011

Launch Preparations Report

NASA's Mars Science Laboratory Project continues to press ahead with launch preparation activities, planning to use additional time before encapsulating the rover in the launch vehicle's nose cone.

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This image of Earth (on the left) and the moon (on the right) was taken by NASA's Juno spacecraft on Aug. 26, 2011

August 30, 2011

Jupiter-Bound Space Probe Captures Earth And Moon

On its way to the biggest planet in the solar system -- Jupiter, NASA's Juno spacecraft took time to capture its home planet and its natural satellite -- the moon.

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Artist concept of Mars Exploration Rover. Image credit: NASA/JPL-Caltech

August 30, 2011

NASA Announces Media Telecon About Opportunity Rover

NASA will host a media teleconference on Thursday, Sept. 1, at 12:30 p.m. PDT (3:30 p.m. EDT) to discuss progress of NASA's Mars Exploration Rover Opportunity.

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NASA's Cassini spacecraft obtained this unprocessed image of Saturn's moon Hyperion on Aug. 25, 2011.

August 26, 2011

Cassini Closes in on Saturn's Tumbling Moon Hyperion

NASA's Cassini spacecraft captured new views of Saturn's oddly shaped moon Hyperion during its encounter with this cratered body on Thursday, Aug. 25.

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The payload fairing is added to the GRAIL booster

August 25, 2011

NASA Moon Mission in Final Preparations for September Launch

NASA's Gravity Recovery And Interior Laboratory (GRAIL) mission to study the moon is in final launch preparations for a scheduled Sept. 8 launch from Cape Canaveral Air Force Station in Florida.

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GRAIL Artist's Rendition

August 24, 2011

NASA Sets GRAIL Launch Coverage Events

NASA's GRAIL spacecraft is set to launch to the moon aboard a United Launch Alliance Delta II rocket on Sept. 8, 2011, from Cape Canaveral Air Force Station, Fla.

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Artist concept of GRAIL mission. Grail will fly twin spacecraft in tandem orbits around the moon to measure its gravity field in unprecedented detail.

August 22, 2011

NASA Hosts News Conference on Upcoming Moon Mission

NASA will host a news conference at 8 a.m. PDT on Thursday Aug. 25, to discuss the upcoming launch of the Gravity Recovery And Interior Laboratory (GRAIL) mission.

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'Ridout' Rock on Rim of Odyssey Crater

August 19, 2011

New Rover Snapshots Capture Endeavour Crater Vistas

NASA's Mars Exploration Rover Opportunity has captured eye-catching images of Martian terrain from its new perch at Endeavour Crater.

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NASA's twin Gravity Recovery and Interior Laboratory (GRAIL) spacecraft

August 18, 2011

NASA's GRAIL Moon Twins are Joined to Their Booster

NASA's lunar-bound GRAIL twins were mated to their Delta II launch vehicle at the Cape Canaveral Air Force Station's Launch Complex 17.

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Trajectory of comet Elenin.

August 16, 2011

Comet Elenin Poses No Threat to Earth

Comet Elenin, like most comets, is harmless. NASA scientists share the facts about Elenin, which will pass at a safe 22 million miles from Earth in October.

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At Astrotech Space Operation's payload processing facility in Titusville, Fla.,

August 11, 2011

GRAIL Launch Less Than One Month Away

GRAIL-A and GRAIL-B - completed their final inspections and were weighed one final time at the Astrotech Space Operations facility in Titusville, Fla., on Tuesday.

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3D Image of Vesta's Equatorial Region

August 11, 2011

NASA's Asteroid Photographer Beams Back Science Data

NASA's Dawn spacecraft is now in its first science-collecting orbit at Vesta.

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West Rim of Endeavour Crater on Mars

August 10, 2011

NASA Mars Rover Arrives at New Site on Martian Surface

After a journey of almost three years, NASA's Mars Exploration Rover Opportunity has reached the Red Planet's Endeavour crater to study rocks never seen before.

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Three of Titan's major surface features-dunes

August 8, 2011

Putting it all Together on Titan

Three of Titan's major surface features -- dunes, craters and the enigmatic Xanadu -- appear in this radar image from NASA's Cassini spacecraft.

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NASA's Mars Exploration Rover Opportunity used its panoramic camera to capture this view of a portion of Endeavour crater's rim

August 8, 2011

NASA Mars Rover Approaches Long-Term Goal

NASA's Mars Exploration Rover Opportunity may reach the rim of Endeavour crater in coming days.

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NASA's Juno mission lifts off from Cape Canaveral Air Force Station in Florida.

August 5, 2011

NASA's Juno Spacecraft Launches to Jupiter

NASA's solar-powered Juno spacecraft lifted off from Cape Canaveral Air Force Station in Florida at 9:25 a.m. PDT (12:25 p.m. EDT) Friday to begin a five-year journey to Jupiter.

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NASA's Juno spacecraft awaits launch from inside the payload fairing atop a United Launch Alliance Atlas V-551

August 4, 2011

Juno Launch Milestones

NASA's Juno spacecraft has successfully separated from the Centaur upper stage of its Atlas V rocket. It is on its way to Jupiter.

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Oblique View of Warm Season Flows in Newton Crater

August 4, 2011

NASA Spacecraft Data Suggest Water Flowing on Mars

Observations from NASA's Mars Reconnaissance Orbiter have revealed possible flowing water during the warmest months on Mars.

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LEGO Figurines Aboard Juno

August 3, 2011

Juno Spacecraft to Carry Three Figurines to Jupiter Orbit

NASA's Jupiter-bound Juno spacecraft will carry the 1.5-inch likeness of Galileo Galilei, the Roman god Jupiter and his wife Juno to Jupiter when the spacecraft launches on Aug. 5.

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A plaque dedicated to the famous astronomer Galileo Galilei can be seen here on NASA's Juno spacecraft.

August 3, 2011

Juno Jupiter Mission to Carry Plaque Dedicated to Galileo

A plaque dedicated to the famous astronomer Galileo Galilei will be carried to Jupiter aboard NASA's Juno spacecraft.

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NASA's Juno spacecraft passes in front of Jupiter in this artist's depiction.

August 3, 2011

NASA's Jupiter Probe Ready for Launch

NASA's Juno spacecraft is getting ready to lift off on Friday, Aug. 5, 2011.

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Artist concept of Mars Reconnaissance Orbiter.

August 3, 2011

NASA Announces News Briefing on Mars Orbiter Science Finding

NASA will host a news briefing on Thursday, Aug. 4, at 11 a.m. PDT (2 p.m. EDT) about a significant new Mars science finding.

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This still image from a Juno mission animation shows how the spinning spacecraft might look during deployment of its giant solar arrays.

August 1, 2011

NASA Invites Twitter Followers to Launch of Juno Spacecraft

NASA has invited 150 followers of the agency's Twitter account to a two-day launch Tweetup Aug. 4-5.

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NASA's Juno spacecraft is shown in orbit above Jupiter's colorful clouds in this artist's rendering.

August 1, 2011

Juno to Show Jupiter's Magnetic Field in High-Def

When it comes to magnetic fields, Jupiter is the ultimate muscle car. NASA's Juno mission will help figure out how this mighty engine works.

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Full-Frame Image of Vesta

August 1, 2011

NASA's Dawn Spacecraft Begins Science Orbits of Vesta

NASA's Dawn spacecraft, the first ever to orbit an object in the main asteroid belt, is spiraling towards its first of four intensive science orbits.

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NASA's Dawn spacecraft obtained this image with its framing camera on July 23, 2011

July 28, 2011

NASA's Dawn's Spacecraft Views Dark Side of Vesta

NASA's Dawn mission, in orbit around Vesta, captures a new image from a distance of 3,200 miles (5,200) kilometers from the giant asteroid.

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Artist's concept of the Dawn spacecraft

July 28, 2011

NASA to Unveil Vesta Images at News Conference

NASA will host a news conference on Monday, Aug. 1 to discuss the Dawn spacecraft's successful orbit insertion around Vesta and unveil images from Dawn's framing camera.

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Earth's New Trojan Friend

July 27, 2011

NASA's WISE Finds Earth's First Trojan Asteroid

Astronomers studying observations taken by NASA's WISE mission have discovered the first known "Trojan" asteroid orbiting the sun along with Earth.

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NASA's Juno spacecraft passes in front of Jupiter in this artist's depiction.

July 27, 2011

NASA's Jupiter-Bound Juno Spacecraft Mated to its Rocket

NASA's Juno spacecraft has completed a 15-mile (25-kilometer) trip from Astrotech Space Operations in Titusville, Fla., to its Cape Canaveral launch pad.

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NASA's Juno spacecraft passes in front of Jupiter in this artist's depiction.

July 26, 2011

NASA Sets Launch Coverage Events for Mission to Jupiter

NASA's Juno spacecraft is set to launch toward Jupiter aboard a United Launch Alliance Atlas V rocket on Aug. 5.

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Artist's concept of NASA Juno spacecraft at the planet Jupiter

July 22, 2011

NASA Briefing to Preview Upcoming Mission to Jupiter

NASA will hold a news briefing on Wednesday, July 27 to discuss preparations for the upcoming Juno mission to Jupiter.

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Artist concept of GRAIL mission.

July 22, 2011

NASA Announces Launch Tweetup for GRAIL Moon Mission

NASA will host a two-day launch Tweetup for 150 of its Twitter followers on Sept. 7-8 at the agency's Kennedy Space Center in Florida.

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Oblique view of Gale Crater from the Northwest

July 22, 2011

NASA's Next Mars Rover to Land at Gale Crater

NASA's next Mars rover will land at the foot of a layered mountain inside the planet's Gale crater.

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NASA's Dawn spacecraft obtained this image with its framing camera on July 18, 2011.

July 21, 2011

NASA's Dawn Spacecraft Beams Back New Photo

NASA's Dawn mission, in orbit around Vesta, captured the latest image from a distance of about 6,500 miles (10,500 kilometers) kilometers from the giant asteroid.

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Drive Direction Image by Opportunity After Surpassing 20 Miles

July 19, 2011

NASA's Opportunity Tops 20 Miles of Mars Driving

NASA's Mars Exploration Rover Opportunity completed a drive on July 17 that took the vehicle's total driving distance on Mars past 20 miles.

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Technicians use an overhead crane to lower NASA's Juno spacecraft onto a fueling stand at Astrotech's Hazardous Processing Facility in Titusville, Fla.

July 19, 2011

Juno Processing Continues in Florida

NASA's Juno spacecraft in final preparations for the opening of its launch period Aug. 5, 2011.

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Curiosity - The Next Mars Rover

July 18, 2011

NASA to Announce Landing Site for New Mars Rover

NASA and the Smithsonian's National Air and Space Museum will host a news conference 10 a.m. EDT, Friday, July 22 to announce the selected landing site for the next Mars rover.

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Latest Image of Vesta captured by Dawn on July 17, 2011

July 18, 2011

NASA Dawn Spacecraft Returns Close-Up Image of Vesta

NASA's Dawn spacecraft has returned the first close-up image after beginning its orbit around the giant asteroid Vesta.

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NASA's Dawn spacecraft, illustrated in this artist's concept, is propelled by ion engines.

July 16, 2011

NASA's Dawn Spacecraft Enters Orbit Around Asteroid Vesta

NASA's Dawn spacecraft on Saturday became the first probe ever to enter orbit around an object in the main asteroid belt between Mars and Jupiter.

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This visitor from deep space, seen here by NASA's Wide-field Infrared Survey Explorer

July 14, 2011

Comet Hartley 2 Leaves a Bumpy Trail

Comet Hartley 2 is a little bit like Hansel and Gretel, leaving behind a trail of ice crumbs as it circles the sun.

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Asteroid Vesta

July 14, 2011

NASA Spacecraft to Enter Asteroid's Orbit on July 15

On July 15, NASA's Dawn spacecraft will begin a prolonged encounter with the asteroid Vesta, making the mission the first to enter orbit around a main-belt asteroid.

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NASA's Dawn spacecraft, illustrated in this artist's concept, is propelled by ion engines.

July 7, 2011

Dawn Team Members Check out Spacecraft

Mission managers for NASA's Dawn spacecraft are studying the spacecraft's ion propulsion system after Dawn experienced a loss of thrust on June 27.

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Juno and Jupiter artist's depiction

July 7, 2011

Gas Giant Spacecraft All Gassed Up

NASA's Juno spacecraft is in the final preparation stages for its mission to Jupiter.

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Catching Its Tail

July 6, 2011

Cassini Captures Images and Sounds of Saturn Storm

Scientists analyzing data from NASA's Cassini spacecraft now have the first-ever, up-close details of a Saturn storm that is eight times the surface area of Earth.

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Workers guide Juno's Centaur upper stage onto the mission's waiting Atlas V rocket.

July 5, 2011

NASA's Spacecraft T-Minus One Month to Jupiter Period

NASA's Juno spacecraft is one month away from the opening of its launch period.

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Juno spacecraft undergoes testing at Astrotech payload processing facility, Titusville, Fla.

June 24, 2011

Juno Blanket Check

Juno undergoes testing prior to its August launch to Jupiter.

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Mars Rover Curiosity in Artist's Concept, Close-up

June 24, 2011

New Animation Depicts Next Mars Rover in Action

A new, high-definition animation of NASA's Mars Science Laboratory mission combines real scenes of Mars with spacecraft events such as landing on Mars and drilling into rocks.

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NASA's Juno spacecraft passes in front of Jupiter in this artist's depiction.

June 24, 2011

NASA to Host Launch Tweetup for Jupiter-Bound Mission

NASA will host a two-day launch Tweetup for 150 of its Twitter followers on Aug. 4-5 at the agency's Kennedy Space Center in Florida.

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Artist Rendering of the Genesis Spacecraft

June 23, 2011

NASA Mission Suggests Sun and Planets Constructed Differently

Researchers analyzing samples returned by NASA's 2004 Genesis mission have discovered that our sun and its inner planets may have formed differently than previously thought.

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Dawn Approaching Vesta

June 23, 2011

Dawn Nears Start of Year-Long Stay at Giant Asteroid

NASA's Dawn spacecraft is on track to begin the first extended visit to a large asteroid.

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Curiosity, the Mars Science Laboratory mission's rover, along with the mission's descent stage, arrived at NASA's Kennedy Space Center, Fla.

June 23, 2011

NASA Mars Rover Arrives in Florida After Cross-Country Flight

NASA's next Mars rover has completed the journey from its California birthplace to Florida in preparation for launch this fall.

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Bursting at the Seams

June 22, 2011

Cassini Captures Ocean-Like Spray at Saturn Moon

NASA's Cassini spacecraft has discovered the best evidence yet for a large-scale saltwater reservoir beneath the icy crust of Saturn's moon Enceladus.

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Airborne Testing for Mars Landing Radar by Dryden F/A-18

June 21, 2011

Radar for Mars Gets Flight Tests at NASA Dryden

In a series of diving flights, an F/A-18 aircraft at NASA's Dryden Flight Research Center in California is carrying a test model of the radar for the next landing on Mars.

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NASA's Dawn spacecraft, illustrated in this artist's concept, is propelled by ion engines.

June 20, 2011

NASA Hosts Preview of Visit to Large Asteroid

NASA will host a news briefing at 11 a.m. PDT (2 p.m. EDT) on Thursday, June 23, to discuss the Dawn spacecraft's year-long visit to the large asteroid Vesta.

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NASA's Cassini spacecraft obtained this unprocessed image of Saturn's moon Helene on June 18, 2011.

June 20, 2011

Cassini Captures Ice Queen Helene

NASA's Cassini spacecraft has successfully completed its second-closest encounter with Saturn's icy moon Helene, beaming down raw images of the small moon.

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Introducing Comet Hartley 2

June 16, 2011

Science Paper Details NASA Epoxi Flyby of Hyper Comet

NASA's EPOXI mission found that Comet Hartley 2 is a hyperactive little comet, spewing out more water than most other comets its size.

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Artist's concept of NASA's Cassini spacecraft at Saturn.

June 15, 2011

Plasma Spectrometer Operations on Hold

Mission managers for NASA's Cassini spacecraft have suspended operation of the Cassini plasma spectrometer instrument on Tuesday, June 14, 2011.

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This artist's concept shows NASA's two Voyager spacecraft exploring a turbulent region of space known as the heliosheath.

June 15, 2011

Recalculating the Distance to Interstellar Space

Data from NASA's Voyager and Cassini spacecraft suggest Voyager could reach the space between stars sooner than previously thought.

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The solar minimum occurs approximately every 11 years when fewer sunspots like these appear.

June 14, 2011

New Insights on How Solar Minimums Affect Earth

Since 1611, humans have recorded the comings and goings of black spots on the sun.

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Mars Rover Curiosity, Front View

June 13, 2011

NASA's Curiosity Continues Mobility Checkouts

America's next Mars rover, Curiosity, has been driving and moving its arm during its final weeks at its California birthplace.

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Vesta's surface comes into view

June 13, 2011

Dawn Captures Video on Approach to Asteroid Vesta

Scientists working with NASA's Dawn spacecraft have created a new video showing the giant asteroid Vesta as the spacecraft approaches this unexplored world in the main asteroid belt.

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This artist's concept shows NASA's two Voyager spacecraft exploring a turbulent region of space known as the heliosheath

June 9, 2011

Probes Suggest Magnetic Bubbles at Solar System Edge

Observations from NASA's Voyager spacecraft suggest the edge of our solar system may not be smooth, but filled with a turbulent sea of magnetic bubbles.

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Opportunity's First Goal at Endeavour Crater: 'Spirit Point'

June 8, 2011

Opportunity Heads Toward 'Spirit Point'

NASA's Mars Exploration Rover Opportunity is driving toward a destination informally named "Spirit Point" in honor of the rover's twin.

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Opportunity Beside a Small, Young Crater

June 2, 2011

Opportunity Passes Small Crater and Big Milestone

After a recent encounter with a young crater, NASA Mars Exploration Rover Opportunity surpassed 30 kilometers (18.64 miles) in total driving yesterday (June 1).

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Mast Camera View of Curiosity's Deck

May 31, 2011

Camera Duo on Mars Rover Mast Will Shoot Color Views

The main science imaging instrument on NASA's Mars rover Curiosity combines telephoto and wider-angle full-color cameras to see surroundings in detail and in motion.

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Technicians at Astrotech's payload processing facility in Titusville

May 27, 2011

Juno Solar Panels Complete Testing

The solar panels for NASA's Jupiter-bound Juno spacecraft have completed testing, as launch preparations continue.

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Artist's concept of the Mars Exploration Rover

May 25, 2011

NASA's Spirit Rover Completes Mission on Mars

NASA's Mars rover Spirit, which overcame many obstacles during a prolonged lifetime to achieve discoveries about water and environments on ancient Mars, has finished its work.

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This artist concept features NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or present ability to sustain microbial life.

May 24, 2011

NASA Concludes Attempts to Contact Mars Rover Spirit

NASA is ending attempts to regain contact with the long-lived Mars Exploration Rover Spirit, which last communicated on March 22, 2010.

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Curiosity - The Next Mars Rover

May 24, 2011

Mars Science Laboratory Mission Status Report

During processing of NASA's Mars Science Laboratory at NASA's Kennedy Space Center, Fla., an incident occurred on Friday, May 20, involving the spacecraft's back shell.

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NASA's Identical Twins Arrive in Florida for Moon Mission

May 23, 2011

NASA's Twin Craft Arrive in Florida for Moon Mission

Two NASA spacecraft with a date for lunar orbit early next year have arrived in Florida to prepare for a launch in September.

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Technicians prepare to hoist one of the two Grail spacecraft upon completion of a thermal vacuum test at the Lockheed Martin Space Systems facility in Denver

May 19, 2011

NASA's Two Lunar-Bound Spacecraft, Vacuum-Packed

NASA twin GRAIL spacecraft have completed pre-shipment assembly and testing.

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Saturn Northern Storm in Infrared and Visible Light

May 19, 2011

Cassini and Telescope See Violent Saturn Storm

NASA's Cassini spacecraft and a European Southern Observatory ground-based telescope tracked the growth of a giant early-spring storm in Saturn's northern hemisphere that is so powerful it stretches around the entire planet.

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Wheel tracks on Mars from NASA's Mars Exploration Rover Opportunity

May 18, 2011

Mars Rover Driving Leaves Distinctive Tracks

A dance-step pattern visible in wheel tracks imprinted recently by NASA's Mars Exploration Rover Opportunity results from use of an autonomous hazard-checking technique.

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Biggest-Ever Heat Shield Prepared for Mars Spacecraft

May 13, 2011

Mars Mission Components Delivered to Florida

The aeroshell and cruise stage for NASA's Mars Science Laboratory spacecraft arrived at NASA's Kennedy Space Center, Fla., Thursday night from California and Colorado.

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Io's 'Sounding Signal'

May 12, 2011

Galileo Data Reveal Magma Ocean Under Jupiter Moon

New data analysis from NASA's Galileo spacecraft reveals a subsurface ocean of molten or partially molten magma beneath the surface of Jupiter's volcanic moon Io.

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unprocessed image of the asteroid Vesta

May 11, 2011

NASA's Dawn Captures First Image of Nearing Asteroid

NASA's Dawn spacecraft has obtained its first image of the giant asteroid Vesta, which will help fine-tune navigation during its approach.

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NASA Administrator Charles Bolden, left

May 5, 2011

NASA Administrator Visits Jupiter-Bound Spacecraft

NASA administrator Charlie Bolden visited the space agency's next mission to Jupiter on Thursday.

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An artist's concept portrays the proposed Geophysical Monitoring Station mission for studying the deep interior of Mars.

May 5, 2011

NASA Selects Investigations for Future Key Missions

NASA has selected three science investigations from which it will pick one potential 2016 mission to look at Mars' interior for the first time.

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Trajectory of comet Elenin.

May 4, 2011

Comet Elenin: Preview of a Coming Attraction

A visitor from the outer reaches of our solar system might sound ominous. But comets do this all the time.

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Martian 'Freedom 7' Crater 50 Years After Freedom 7 Flight

May 4, 2011

Mars Tribute Marks Memories of Shepard's Flight

A relatively young crater on Mars informally bears the name of the Freedom 7 spacecraft that astronaut Alan Shepard piloted in America's first human spaceflight 50 years ago.

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The new NASA/JPL Space Images V2 app, optimized for iPad, iPhone, iPod Touch and Android.

May 3, 2011

NASA Space Images App, Website Broaden Cosmic Horizons

Professional and amateur space aficionados are in for a treat with the new Space Images Version 2 app, created by NASA's Jet Propulsion Laboratory, Pasadena Calif.

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NASA's Dawn spacecraft, illustrated in this artist's concept, is propelled by ion engines.

May 3, 2011

Dawn Reaches Milestone Approaching Asteroid Vesta

NASA's Dawn spacecraft has reached its official approach phase to the asteroid Vesta and will begin using cameras for the first time to aid navigation.

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This radar image of asteroid 2005 YU55 was generated from data taken in April of 2010 by the Arecibo Radar Telescope in Puerto Rico.

May 2, 2011

Spacecraft Earth to Perform Asteroid 'Flyby' This Fall

NASA spacecraft have already flown past comets and asteroids, and now Earth itself will "fly by" an object that will provide NASA scientists a unique observing opportunity.

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Voyager: Humanity's Farthest Journey (Video)

April 28, 2011

Voyager Set to Enter Interstellar Space

Humanity's Farthest Spacecraft: Expect the Unexpected

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Artist's concept of the Voyager spacecraft

April 27, 2011

Five Things About NASA's Voyager Mission

Here are five things you should know about NASA's twin Voyager 1 and 2 spacecraft, the longest continuously-operating spacecraft in deep space.

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This artist's concept shows NASA's two Voyager spacecraft exploring a turbulent region of space known as the heliosheath

April 26, 2011

NASA Invites Public to Journey Toward Interstellar Space

NASA will hold a special NASA Science Update at 10 a.m. PDT (1 p.m. EDT) on Thursday, April 28, to discuss the unprecedented journey of NASA's twin Voyager spacecraft to the edge of our solar system.

Read more

 
Thickness Map of Buried Carbon-Dioxide Deposit

April 21, 2011

NASA Orbiter Reveals Big Changes in Mars' Atmosphere

NASA's Mars Reconnaissance Orbiter has discovered the total amount of atmosphere on Mars changes dramatically as the tilt of the planet's axis varies.

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NASA's Cassini spacecraft has spotted a glowing patch of ultraviolet light near Saturn's north pole that marks the presence of an electrical circuit

April 20, 2011

Cassini Sees Saturn Electric Link With Enceladus

NASA is releasing the first images and sounds of an electrical connection between Saturn and one of its moons, Enceladus.

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Asteroid 2011 GP59 as imaged on the night of April 11, 2011 by amateur astronomer Nick James of Chelmsford, Essex, England.

April 14, 2011

Fast-Rotating Asteroid Winks For Astronomer's Camera

An amateur astronomer's video of a newly discovered near-Earth object shows the space rock to be tumbling at a fast rate.

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Area investigated on a rock on Mars by Opportunity

April 11, 2011

Mars Rover's 'Gagarin' Moment Applauded Exploration

Approaching the 50th anniversary of the first human spaceflight, Mars rover team members are remembering a Martian rock informally named for Yuri Gagarin.

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NASA's Juno spacecraft arrives in Florida

April 8, 2011

NASA's Jupiter-Bound Spacecraft Arrives in Florida

NASA's Juno spacecraft has arrived in Florida to begin final preparations for a launch this summer.

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A newly discovered asteroid

April 8, 2011

WISE Mission Spots 'Horseshoe' Asteroid

Astronomers using data from NASA's WISE mission have found an asteroid that appears to slowly trace out a horseshoe shape in space, as seen from Earth.

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Four moons huddle near Saturn's multi-hued disk

April 7, 2011

New Theory: Titan Shaped By Weather, Not Ice Volcanoes

Have the surface and belly of Saturn's smog-shrouded moon Titan recently simmered like a chilly, bubbling cauldron with ice volcanoes, or has this distant moon gone cold?

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NASA Mars Rover Curiosity at JPL, Side View

April 6, 2011

NASA's Next Mars Rover Nears Completion

New images show Curiosity, the rover for NASA's Mars Science Laboratory mission, looking similar to how it will appear after it lands on Mars in August 2012.

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This artist's concept shows comet Shoemaker-Levy 9 heading into Jupiter in July 1994

March 31, 2011

Forensic Sleuthing Ties Ring Ripples to Impacts

Scientists using data from NASA's Cassini, Galileo and New Horizons missions have traced ripples in the rings of Saturn and Jupiter back to collisions with cometary fragments.

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When is an Asteroid Not an Asteroid?

March 29, 2011

When is an Asteroid Not an Asteroid?

When it's Vesta! On the anniversary of Vesta's discovery day, NASA's Dawn mission celebrates this extraordinary hunk of rock.

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The image shows Curiosity on a tilt table in the Spacecraft Assembly Facility at NASA's Jet Propulsion Laboratory, Pasadena, California.

March 25, 2011

Work Stopped on Alternative Cameras for Mars Rover

The main camera instrument for the next rover to Mars will use a pair of cameras with different focal lengths, already installed and tested, rather than twin zoom cameras.

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Artist's concept of NASA's Stardust spacecraft

March 24, 2011

NASA's Venerable Comet Hunter Wraps Up Mission

At 33 minutes after 4 p.m. PDT today, NASA's Stardust spacecraft finished its last transmission to Earth.

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Artist's concept of Stardust spacecraft

March 23, 2011

NASA's Stardust: Good to the Last Drop

NASA's most traveled comet hunter goes out in style with one final burn of its rocket motors.

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Jupiter-bound spacecraft, Juno

March 22, 2011

Juno Marches On

NASA's Jupiter-bound spacecraft, Juno, is undergoing testing prior to shipment to NASA's Kennedy Space Center.

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Saturn's Auroras in Double Light Show

March 22, 2011

Cassini Finds Saturn Sends Mixed Signals

Radio signals from Saturn's northern and southern hemisphere sing out of sync and have crossed each other since the planet's equinox.

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Artist's concept of Dawn

March 21, 2011

Dawn Opens its Eyes, Checks its Instruments

In preparation for orbiting Vesta this summer, the spacecraft's camera system and other instruments have successfully awakened from hibernation.

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Artist's concept of the Spirit rover

March 18, 2011

Alternatives Have Begun in Bid to Hear from Spirit

Hopes for reviving NASA's Spirit Mars rover dimmed further with passage last week of the point at which the rover's locale received its maximum sunshine for the Martian year.

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Testing of the Mars Science Laboratory, Curiosity rover

March 18, 2011

Next Mars Rover Gets a Test Taste of Mars Conditions

For most of this month, the Mars Science Laboratory mission's rover, Curiosity, is inside a sealed chamber where conditions simulate those it will experience on Mars.

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Sensors on two finger-like mini-booms extending horizontally from the mast of NASA's Mars rover Curiosity will monitor wind speed

March 17, 2011

Madrid Event Marks Spain's Role in Next Mars Mission

Governments of the United States and Spain saluted collaboration in the Mars Science Laboratory mission with an agreement-signing ceremony today, March 17, in Madrid.

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Equatorial Titan Clouds

March 17, 2011

Cassini Sees Seasonal Rains Transform Titan's Surface

As spring continues to unfold at Saturn, April showers on the planet's largest moon, Titan, have brought methane rain to its equatorial deserts, as revealed by Cassini.

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This video shows the scientists' best guess to date of what the surface of the protoplanet Vesta

March 10, 2011

Dawn Gets Vesta Target Practice

Practice mapping of Vesta produces an animation and still images that show scientists' best guess about the surface and shape of the giant asteroid.

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Images like this from the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter show portions of the Martian surface in unprecedented detail.

March 9, 2011

Prolific NASA Orbiter Reaches Five-Year Mark

NASA's versatile Mars Reconnaissance Orbiter, which began orbiting Mars five years ago tomorrow, March 10, has radically expanded our knowledge of the Red Planet and is now working overtime.

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The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter acquired this color image on March 9, 2011, of

March 9, 2011

Color View from Orbit Shows Mars Rover Beside Crater

A new color view from NASA's Mars Reconnaissance Orbiter catches the rover Opportunity at work beside a football-field-size crater which the rover will soon leave behind.

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This image from orbit covers an area about 460 meters (about 1,500 feet) across, in which carbonate minerals have been identified from spectrometer observations.

March 8, 2011

Some of Mars' Missing Carbon Dioxide May be Buried

Rocks on Mars dug from far underground by crater-blasting impacts are providing glimpses of one possible way Mars' atmosphere has become much less dense than it used to be.

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This artist's concept shows NASA's two Voyager spacecraft exploring a turbulent region of space known as the heliosheath.

March 8, 2011

Voyager Seeks the Answer Blowin' in the Wind

In which direction is the sun's stream of charged particles banking when it nears the edge of the solar system?

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Jupiter Spacecraft Nearing Completion

March 7, 2011

NASA's Jupiter-Bound Spacecraft Taking Shape In Denver

NASA's Juno spacecraft is undergoing final testing before shipment to the Cape Canaveral Air Force Station for launch this summer.

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Enceladus the Powerhouse

March 7, 2011

Cassini Finds Enceladus is a Powerhouse

Heat output from the south polar region of Saturn's moon Enceladus is much greater than was previously thought possible.

Read more

 
This colorful picture is a mosaic of the Lagoon nebula taken by NASA’s Wide-field Infrared Survey Explorer, or WISE.

February 18, 2011

Can WISE Find the Hypothetical 'Tyche'?

This colorful picture is a mosaic of the Lagoon nebula taken by NASA’s Wide-field Infrared Survey Explorer, or WISE.

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Image on the left shows Grad student Nicholas Boyd (left) and Principal Investigator Ralf Gellert, both of the University of Guelph, Ontario, Canada

February 18, 2011

Advanced NASA Instrument Gets Close-up on Mars Rocks

NASA's next Mars rover, Curiosity, will take a next generation "hands-on" look at rocks and soils to determine the chemical makeup near its landing zone.

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Artist's concept of the Feb. 18, 2011, flyby of Saturn's moon Titan by NASA's Cassini spacecraft.

February 17, 2011

Cassini to Sample Magnetic Environment around Titan

Skimming close to Saturn's moon Titan on Friday, Feb. 18 will teach scientists about the interaction between Titan and Saturn's magnetosphere.

Read more

 
Tempel 1 Impact Site

February 15, 2011

NASA Releases Images of Man-Made Crater on Comet

NASA's Stardust spacecraft returned new images of a comet showing a scar resulting from the 2005 Deep Impact mission.

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NASA's Stardust-NExT mission transmitted the first image it took during its approach to  comet Tempel 1 at 8:35 p.m. PST (11:35 p.m. EST) on Feb. 14, 2011, from a distance of approximately 2,462 kilometers (1,530 miles)

February 15, 2011

Comet Hunter's First Images on the Ground

JPL Mission controllers have begun receiving the first of 72 anticipated images of comet Tempel 1 taken by NASA's Stardust spacecraft.

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Artist's concept of NASA's Stardust-NExT mission, which will fly by comet Tempel 1 on Feb. 14, 2011.

February 14, 2011

NASA's Stardust Spacecraft Completes Comet Flyby

Mission controllers at NASA's Jet Propulsion Laboratory, Pasadena, Calif., watched as data downlinked from the Stardust spacecraft indicated it completed its closest approach with comet Tempel 1.

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A heart-shaped feature in the Arabia Terra region of Mars.

February 14, 2011

Happy Valentine's Day from Mars

Hearty thoughts are prompted by the image of a crater in the Arabia Terra region of Mars, taken by the Conext Camera on NASA's Mars Reconnaissance Orbiter.

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This composite image was taken by NASA's Stardust spacecraft 42 hours before its encounter with comet Tempel 1.

February 14, 2011

NASA's Stardust-NExT: Valentine's Night Comet Flyby

As of about 10 p.m. PST (1 a.m. EST on Feb. 15), NASA's Stardust spacecraft has turned to point its high-gain antenna at Earth and started downlinking data through that antenna.

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Artist's concept of NASA's Stardust-NExT mission, which will fly by comet Tempel 1 on Feb. 14, 2011.

February 14, 2011

The Two Faces of Tempel 1

Whichever part of comet Tempel 1 is facing toward Stardust when the spacecraft zips by the comet tonight should provide some great new science.

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Artist's concept of a comet-themed box of chocolates

February 10, 2011

Five Things About NASA's Valentine's Day Comet

Here are five facts about NASA's Stardust-NExT spacecraft as it prepares for a Valentine's "date" with comet Tempel 1. Feel free to sing along!

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Artist's concept of NASA's Stardust-NExT mission, which will fly by comet Tempel

February 9, 2011

Heading Into the Bonus Round -- in Space

Stardust-NExT, history's most traveled comet hunter, has a rich legacy of space firsts.

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Artist rendering of Stardust-NExT spacecraft. Image credit: NASA/JPL

February 8, 2011

NASA Hosting Events for Valentine's Night Comet Encounter

NASA will host several live activities for the Stardust-NExT mission's close encounter with comet Tempel 1.

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NASA's Stardust-NExT mission will fly past comet Tempel 1 on the evening of Feb. 14, 2011

February 8, 2011

Stardust Celebrates Twelve Years With Rocket Burn

NASA's Stardust-NExT mission team on Earth marked the spacecraft's 12th anniversary in space with a flight path correction maneuver.

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artist’s concept of NASA's Jupiter Europa Orbiter

February 4, 2011

Proposed Mission to Jupiter System Achieves Milestone

NASA-ESA Proposal to Study the Moons Europa and Ganymede Maps Joint Strategy.

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The blurring effects of Titan's aerosols are obvious in this image, where the orange moon peeks from behind two of Saturn's rings

February 3, 2011

Surprise Hidden in Titan's Smog: Cirrus-Like Clouds

Scientists report details about thin, wispy clouds of ice particles, similar to Earth's cirrus clouds, on Saturn's largest moon, smoggy Titan.

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Three images of the same location taken at different times on Mars show seasonal activity causing sand avalanches and ripple changes on a Martian dune.

February 3, 2011

Northern Mars Landscape Actively Changing

Sand dunes in a vast area of northern Mars long thought to be frozen in time are changing with both sudden and gradual motions, according to research using images from a NASA orbiter.

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NASA's Stardust-NExT mission will fly by comet Tempel 1 on Feb. 14, 2011.

February 1, 2011

NASA Stardust Adjusts Flight Path for Comet Meetup

NASA's Stardust spacecraft has executed a rocket burn to refine its flight path toward a Valentine's Day comet encounter.

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Saturn's moon Helene

February 1, 2011

Cassini Sends Back Postcards of Saturn Moons

Portraits of Helene, Enceladus and Mimas

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A Family Portrait

February 1, 2011

NASA's NEOWISE Completes Scan for Asteroids and Comets

NASA's NEOWISE mission has completed its survey of small bodies, asteroids and comets, in our solar system.

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The first image of comet Tempel 1 taken by NASA's Stardust spacecraft is a composite made from observations on Jan. 18 and 19, 2011.

January 26, 2011

NASA Comet Hunter Spots Its Valentine

NASA's Stardust spacecraft is closing in on a Valentine's Day date with comet Tempel 1.

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Jupiter Scar in Infrared

January 26, 2011

Asteroids Ahoy! Jupiter Scar Likely from Rocky Body

A hurtling asteroid about the size of the Titanic caused the scar that appeared in Jupiter's atmosphere on July 19, 2009, according to two recent papers.

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Uranus in True and False Color

January 21, 2011

Voyager Celebrates 25 Years Since Uranus Visit

In 1986, NASA's Voyager 2 made the only close approach to date of our mysterious seventh planet from the sun.

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Color Panorama of 'Santa Maria' Crater for Opportunity's Anniversary

January 20, 2011

Mars Sliding Behind Sun After Rover Anniversary

The team operating NASA's Mars rover Opportunity will temporarily suspend commanding for 16 days after the rover's seventh anniversary next week, but the rover will stay busy.

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Artist rendering of Stardust-NExT spacecraft. Image credit: NASA/JPL

January 19, 2011

NASA Spacecraft Prepares for Valentine's Day Comet Rendezvous

NASA's Stardust-NExT spacecraft is nearing a celestial date with comet Tempel 1 at approximately 8:37 p.m. PST (11:37 p.m. EST), on Feb. 14.

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Lifting SAM Instrument for Installation into Mars Rover

January 18, 2011

NASA Mars Rover Will Check for Ingredients of Life

One of the jobs for the biggest science instrument on NASA's next Mars rover will be to check for the carbon-based molecular building blocks of life.

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Craters on Saturn's moon Rhea

January 13, 2011

Cassini Rocks Rhea Rendezvous

NASA's Cassini spacecraft has successfully completed its closest flyby of Saturn's moon Rhea, returning raw images of the icy moon's surface.

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NASA's Cassini spacecraft captured this raw image of Saturn's icy moon Rhea in the foreground

January 12, 2011

Cassini's Snaps of Rhea Coming Down

Raw images obtained by NASA's Cassini spacecraft from the closest flyby of Saturn's moon Rhea have begun streaming to Cassini's raw image page.

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A radar image of asteroid 2010 JL33, generated from data taken by NASA's Goldstone Solar System Radar on Dec. 11 and 12, 2010.

January 11, 2011

NASA Radar Reveals Features on Asteroid

This 36-frame video, from NASA's Goldstone Solar System Radar, depicts the rotation of asteroid JL33 - an irregular, elongated object roughly 1.8 kilometers (1.1) miles wide.

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Surface of Mars

January 11, 2011

Web-Streamed Event Will Cover Mars Science Findings

Scientists will discuss recent discoveries about Mars and future Mars exploration at a Jan. 13 event to be streamed live and archived.

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This artist's concept shows the third flyby of Saturn's moon Rhea by NASA's Cassini spacecraft. It is the closest flyby of Cassini's mission.

January 10, 2011

Cassini to Probe Rhea for Clues to Saturn Rings

Saturn's icy moon Rhea might seem a strange place to look for clues to understanding the vast majestic rings encircling Saturn.

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Artist concept of Mars Exploration Rover

January 4, 2011

NASA Checking on Rover Spirit During Martian Spring

Nine months after last hearing from the Mars rover Spirit, NASA is stepping up efforts to regain communications with the rover before spring ends on southern Mars in mid-March.

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Mars Orbiter Sees Rover Opportunity at Crater Edge

January 4, 2011

Rover Will Spend 7th Birthday at Stadium-Size Crater

NASA's Mars Reconnaissance Orbiter has photographed the Mars Exploration Rover Opportunity beside a crater where the rover will spend the seventh anniversary of its landing.

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This true color mosaic of Jupiter was constructed from images taken by the narrow angle camera onboard NASA's Cassini spacecraft on December 29, 2000

December 29, 2010

Cassini Celebrates 10 Years Since Jupiter Encounter

NASA's Cassini spacecraft made its closest approach to the solar system's biggest planet on Dec. 30, 2000.

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'Santa Maria' Crater in 360-Degree View, Sol 2451

December 23, 2010

Opportunity Studying a Football-Field Size Crater

NASA's Mars Exploration Rover Opportunity will spend a few weeks investigating a football-field-size crater informally named 'Santa Maria.'

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The Canberra Deep Space Communications Complex, located outside Canberra, Australia.

December 22, 2010

Contract Marks New Generation for Deep Space Network

NASA has taken the next step toward a new generation of Deep Space Network antennas.

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ChemCam Mast Unit Being Prepared for Laser Firing

December 22, 2010

NASA's Next Mars Rover to Zap Rocks With Laser

NASA's next Mars rover, Curiosity, will shoot a laser at rocks and patches of soil with enough power to generate a flash revealing each target's atomic ingredients.

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The sun descends to the Martian horizon.

December 22, 2010

Mars Movie: I'm Dreaming of a Blue Sunset

A new Mars movie clip gives us a rover's-eye view of a bluish Martian sunset, while another clip shows the silhouette of the moon Phobos passing in front of the sun.

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Dark Moon, Bright Spray

December 21, 2010

Cassini Finishes Sleigh Ride by Icy Moons

On the heels of a successful close flyby of Saturn's moon Enceladus, NASA's Cassini spacecraft is returning images of Enceladus and the nearby moon Dione.

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Hemispheric color differences on Saturn's moon Rhea are apparent in this false-color view from NASA's Cassini spacecraft.

December 20, 2010

Cassini Marks Holidays With Dramatic Views of Rhea

Newly released for the holidays, images of Saturn's second largest moon Rhea obtained by Cassini show dramatic views of fractures and craters on the moon's surface.

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The New South and the Old North

December 20, 2010

Cassini Takes Close-Up of Enceladus Northern Hemisphere

NASA's Cassini spacecraft will be making its close flyby of the northern hemisphere of Saturn's moon Enceladus today, Monday, Dec. 20.

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NASA's Mars Exploration Rover Opportunity used its navigation camera to record this view of Santa Maria crater at the end of a drive during the 2,450th Martian day

December 16, 2010

NASA Spacecraft Provides Travel Tips for Mars Rover

NASA's Mars Opportunity rover is getting important tips from an orbiting spacecraft as it explores areas that might hold clues about past Martian environments.

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Artist concept of NASA's Mars Odyssey orbiter with actual images taken by the spacecraft.

December 15, 2010

NASA's Odyssey Spacecraft Sets Exploration Record on Mars

NASA's Mars Odyssey, which launched in 2001, will break the record Wednesday for longest-serving spacecraft at the Red Planet.

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This is an artist's concept of the Saturnian plasma sheet based on data from Cassini magnetospheric imaging instrument.

December 14, 2010

Hot Plasma Explosions Inflate Saturn's Magnetic Field

New Cassini findings show enormous clouds of hot plasma periodically bloom around Saturn and move like an unbalanced load of laundry on spin cycle.

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This image is based on data from NASA's Cassini spacecraft

December 14, 2010

Cassini Spots Potential Ice Volcano on Saturn Moon

NASA's Cassini spacecraft has found possible ice volcanoes on Saturn's moon Titan that are similar in shape to those on Earth that spew molten rock.

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Artist concept of Voyager near interstellar space. Image credit: NASA/JPL

December 13, 2010

NASA Probe Sees Solar Wind Decline

The 33-year odyssey of NASA's Voyager 1 spacecraft has reached a distant point at the edge of our solar system where there is no outward motion of solar wind.

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In Ares Vallis, teardrop mesas extend like pennants behind impact craters, where the raised rocky rims diverted the floods and protected the ground from erosion.

December 9, 2010

Odyssey Orbiter Nears Martian Longevity Record

By the middle of next week, NASA's Mars Odyssey orbiter will have worked longer at Mars than any other spacecraft in history.

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NASA's Cassini spacecraft obtained this raw image of the south polar region of Saturn's moon Enceladus on Nov. 30, 2010.

December 1, 2010

Cassini Returns Images of Bright Jets at Enceladus

NASA's Cassini spacecraft successfully dipped near the surface of Saturn's moon Enceladus on Nov. 30.

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Sand Ripples Inside a Rimless Martian Pit (Stretched)

December 1, 2010

Pits, Flows, Other Scenes in New Set of Mars Images

Thousands of new Mars images from 340 observations by the highest resolution camera orbiting the Red Planet include scenes of rimless pits, mud volcanoes and other features.

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Engineers build the next Mars rover, Curiosity, in the clean room at JPL

November 30, 2010

Mars Rover Construction Webcam Tops Million Viewers

More than one million people have watched assembly and testing of NASA's next Mars rover via a live webcam since it went online in October.

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Weather Sensors from Spain on Mars Rover Curiosity

November 30, 2010

Spain Supplies Weather Station for Next Mars Rover

As it explores a region of Mars, NASA's rover Curiosity will monitor temperatures, winds, humidity and other environmental variables using tools supplied by Spain.

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Hot and Narrow Tiger Stripe

November 29, 2010

Cassini Finds Warm Cracks on Enceladus

New images and data from NASA's Cassini spacecraft give scientists a unique Saturn-lit view of active fissures through the south polar region of Saturn's moon Enceladus.

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The cratered plains of Saturn's moon Rhea are visible in this image obtained by NASA's Cassini spacecraft on Nov. 21, 2009.

November 29, 2010

Thin Air - Cassini Finds Ethereal Atmosphere at Rhea

NASA's Cassini spacecraft has detected a very tenuous atmosphere infused with oxygen and carbon dioxide around Saturn's icy moon Rhea.

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Artist's concept of Cassini's Nov. 30 flyby of Saturn's moon Enceladus

November 24, 2010

Cassini Back to Normal, Ready for Enceladus

NASA's Cassini spacecraft resumed normal operations today, Nov. 24. All science instruments have been turned back on, the spacecraft is properly configured and Cassini is in good health.

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Image showing a belt reappearing in Jupiter's atmosphere

November 24, 2010

Stripes Are Back in Season on Jupiter

New NASA images support findings that one of Jupiter's stripes that "disappeared" last spring is now showing signs of a comeback.

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STARDUST Launch Artist rendering of Stardust-NExT spacecraft. Image credit: NASA/JPL

November 22, 2010

NASA Spacecraft Burns for Another Comet Flyby

NASA's Stardust spacecraft fired its rockets to adjust its flight path today, Nov. 22, to set itself up for a flyby of comet Tempel 1 next February.

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This global view of the surface of Venus is centered at 180 degrees east longitude.

November 19, 2010

Scientists Chosen to Help on Venus Climate Orbiter

NASA has established a Venus Climate Orbiter Participating Scientist Program to complement scientific return of the Japan Aerospace Exploration Agency (JAXA)-led Venus Climate Orbiter, or "Akatsuki" mission.

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'Intrepid' Crater on Mars (Color)

November 18, 2010

NASA Mars Rover Images Honor Apollo 12

NASA's Mars Exploration Rover Opportunity has visited and photographed two craters informally named for the spacecraft that carried men to the moon 41 years ago this week.

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Hartley 2, Close Up

November 18, 2010

NASA Spacecraft Sees Cosmic Snow Storm During Comet Encounter

The EPOXI mission's recent encounter with comet Hartley 2 provided the first images clear enough for scientists to link jets of dust and gas with specific surface features.

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A Geminid meteor

November 16, 2010

How to See the Best Meteor Showers of the Year: Tools, Tips and 'Save the Dates'

There are several major meteor showers to enjoy every year at various times, with some more active than others.

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Color Camera for Curiosity's Robotic Arm

November 16, 2010

Camera on Curiosity's Arm will Magnify Clues in Rocks

A camera installed this month on the robotic arm of NASA's next Mars rover will do close-up inspections for clues to Martian environments, but it can look far away, too.

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Saturn's Kinked F Ring

November 11, 2010

Saturn Then and Now: 30 Years Since Voyager Visit

NASA's Voyager 1 spacecraft made its closest approach to Saturn on Nov. 12, 1980, revealing mysteries that NASA's Cassini spacecraft is working to crack.

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false-color composite image of Saturn

November 10, 2010

Cassini Sees Saturn on a Cosmic Dimmer Switch

Saturn put out less energy over the years and emitted it in a lopsided fashion.

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Artist's concept of the Cassini spacecraft

November 9, 2010

Status Update: Cassini to Resume Nominal Operations

Engineers at NASA's Jet Propulsion Laboratory, Pasadena, Calif., expect the Cassini spacecraft will resume normal operations on Nov. 24.

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Composite of artist's concept of the Curiosity Rover and a photo of its Radiation Assessment Detector instrument

November 9, 2010

Sensor on Mars Rover to Measure Radiation Environment

One of the experiments on NASA's Mars Science Laboratory mission will measure the natural radiation environment to aid plans for future human missions.

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Close-up view of comet Hartley 2

November 5, 2010

Flight of the Comet

This video clip was compiled from images taken by NASA's EPOXI mission spacecraft during its flyby of comet Hartley 2 on Nov. 4.

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Artist's concept of the Cassini spacecraft

November 4, 2010

Engineers Assessing Cassini Spacecraft

Engineers at NASA's Jet Propulsion Laboratory are working to understand what caused NASA's Cassini spacecraft to put itself into "safe mode," a precautionary standby mode.

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Montage of images showing comet Hartley 2 during EPOXI's flyby

November 4, 2010

NASA EPOXI Flyby Reveals New Insights Into Comet Features

Scientists say initial images from today's flyby of comet Hartley 2 provide new information about the comet's volume and material spewing from its surface.

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Introducing Comet Hartley 2

November 4, 2010

NASA Mission Successfully Flies by Comet Hartley 2

NASA's EPOXI mission successfully flew by comet Hartley 2 at about 7 a.m. PDT (10 a.m. EDT) today, and the spacecraft has begun returning images. Hartley 2 is the fifth comet nucleus visited by a spacecraft.

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Close-up view of comet Hartley 2

November 4, 2010

Epoxi Flyby of Comet Hartley 2 Underway

Mission controllers at NASA's Jet Propulsion Laboratory in Pasadena, Calif., have relayed final instructions to their comet-bound spacecraft today, Nov. 3.

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Malcolm Hartley, comet discoverer

November 2, 2010

The Man Behind Comet Hartley 2

Malcolm Hartley has seen a whole lot of the universe over the last 40 years, but he'd never had a close-up view of a comet named after him.

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EPOXI navigation team members and engineers in mission control at JPL

November 2, 2010

NASA Spacecraft on Final Approach Toward Comet

NASA's EPOXI mission spacecraft steadily approaches its target, comet Hartley 2, as it completes its final flight-path adjustment.

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An artist's concept of a NASA Mars Exploration Rover

November 2, 2010

Mars Rovers Mission Using Cloud Computing

The project team that built and operates the Mars rovers Spirit and Opportunity has become the first NASA space mission to use cloud computing for daily mission operations.

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Jets emanating from comet Hartley 2

November 1, 2010

NASA's Comet Mission May Face Multiple Jets Nov. 4

Images from NASA's EPOXI mission shows jets emanating from comet Hartley 2.

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NASA's Cassini spacecraft captured this image of a small object in the outer portion of Saturn's B ring casting a shadow on the rings as Saturn approached its August 2009 equinox.

November 1, 2010

Cassini Sees Saturn Rings Oscillate Like Mini-Galaxy

Scientists believe they finally understand why one of the most dynamic regions in Saturn's rings has such an irregular and varying shape, thanks to images captured by NASA's Cassini spacecraft.

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Artist's concept of the Deep Impact spacecraft

November 1, 2010

NASA to Host Live Events for November 4 Comet Encounter

NASA will hold a series of news and educational events about the EPOXI mission's close encounter with comet Hartley 2, scheduled to occur at approximately 7 a.m. PDT (10 a.m. EDT) on Thursday, Nov. 4.

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Volcanic cone in the Nili Patera caldera on Mars

October 31, 2010

Silica on a Mars Volcano Tells of Wet and Cozy Past

Mounds of a mineral deposited on a volcanic cone more than three billion years ago may preserve evidence of one of the most recent habitable microenvironments on Mars.

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Artist concept of NASA's Voyager spacecraft

October 29, 2010

New Project Manager as Voyager Explores New Territory

As NASA's two Voyager spacecraft hurtle towards the edge of our solar system, a new project manager will shepherd the spacecraft into this unexplored territory.

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Mars dune gullies

October 29, 2010

Study Links Fresh Mars Gullies to Carbon Dioxide

Images from NASA's Mars Reconnaissance Orbiter implicate that carbon-dioxide frost, rather than water, is causing fresh flows of sand on some of the planet's dune gullies.

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Twelve radar images of the nucleus of comet Hartley 2

October 28, 2010

Space Radar Provides a Taste of Comet Hartley 2

A massive space-radar dish in Puerto Rico is providing an appetizing glimpse at a cometary target for a Nov. 4 encounter by NASA's EPOXI mission.

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Soil Disturbed by Spirit Before Fourth Martian Winter

October 28, 2010

NASA Trapped Mars Rover Finds Evidence of Subsurface Water

The ground where NASA's Mars Exploration Rover Spirit became stuck last year holds evidence that water, perhaps as snow melt, trickled into the subsurface fairly recently.

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Epoxi team members in mission control

October 27, 2010

NASA Spacecraft Preps for Comet Flyby

NASA's EPOXI mission has successfully performed one of its final maneuvers as it prepares for a comet flyby on Nov. 4.

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Juno and Jupiter artist's depiction

October 27, 2010

NASA Goddard Delivers Magnetometers for Juno Mission

Instruments will map Jupiter's magnetic field with great accuracy and observe its variations over time.

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Artist's concept of the Deep Impact spacecraft

October 26, 2010

Countdown to Comet Flyby Down to Nine Days

NASA's EPOXI mission continues to close in on its target, comet Hartley 2, at a rate of 12.5 kilometers (7.8 miles) per second.

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Artist's concept of Deep Impact's encounter with comet Temple 1

October 25, 2010

Five Things About NASA's EPOXI Mission

Here are five quick facts about the EPOXI mission, scheduled to fly by comet Hartley 2 on Nov. 4, 2010.

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Artist's concept of EPOXI headed toward comet Hartley 2

October 21, 2010

New Cometary Phenomenon Greets Approaching Spacecraft

Scientists expected the unexpected during NASA's EPOXI mission flyby of comet Hartley 2. They just didn't expect the unexpected quite so unexpectedly.

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The Curiosity Cam live video feed allows the public to watch technicians assemble and test NASA's next Mars rover in a clean room at the Jet Propulsion Laboratory, Pasadena, Calif.

October 21, 2010

Watch Construction of NASA's New Mars Rover Live on the Web

A newly installed webcam is giving the public an opportunity to watch technicians assemble and test the next NASA Mars rover.

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NASA's Cassini spacecraft obtained this raw image of Saturn's moon Titan on Oct. 18, 2010.

October 20, 2010

Spring Has Sprung ... On Titan

Cassini has captured images of clouds in the equatorial region of Saturn's moon Titan, likely heralding the arrival of spring in the northern hemisphere.

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These three views of Saturn's moon Rhea were made from data obtained by NASA's Cassini spacecraft.

October 19, 2010

The (Long) Weekend Warrior: Nine Moons, 62 Hours

NASA's Cassini spacecraft has successfully glided near nine Saturnian moons, sending back a stream of raw images as mementos of its adrenaline-fueled expedition.

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comet Hartley 2

October 19, 2010

The Comet Cometh: Hartley 2 Visible in Night Sky

A comet that makes its closest approach to Earth this Wednesday, Oct. 20, will be scrutinized even more closely by a NASA spacecraft in a little over two weeks.

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Mars Odyssey Project Manager Gaylon McSmith, of NASA's Jet Propulsion Laboratory

October 14, 2010

Long-Lived Mars Odyssey Gets New Project Manager

The new project manager for the longest-working spacecraft currently active at Mars, NASA's Mars Odyssey, has a long track record himself.

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While searching the skies for black holes using NASA's Spitzer Space Telescope, astronomers discovered a giant supernova that was smothered in its own dust.

October 12, 2010

Giant Star Goes Supernova, Smothered by its Own Dust

A giant star in a faraway galaxy recently ended its life with a dust-shrouded whimper instead of the more typical bang.

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A newly-discovered car-sized asteroid will fly past Earth early Tuesday.

October 11, 2010

Small Asteroid to Pass Within Earth-Moon System Tuesday

A small asteroid will fly past Earth early Tuesday within the Earth-moon system.

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The Sample Analysis at Mars (SAM) instrument, at NASA's Goddard Space Flight Center, Greenbelt, Md.,

October 8, 2010

Mobile Mars Lab Almost Ready for Curiosity Rover

A suite of instruments to analyze samples of Martian rocks and soil for chemistry relevant to life is being readied in Maryland for NASA's next Mars rover, Curiosity.

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Hubble Space Telescope snapped these images of the asteroid Vesta in preparation for the Dawn spacecraft's visit in 2011.

October 8, 2010

NASA Mission to Asteroid Gets Help from Hubble

NASA's Hubble Space Telescope has captured images of the large asteroid Vesta that will help refine plans for the Dawn spacecraft's rendezvous with Vesta in July 2011.

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Tinted Rhea

October 7, 2010

Cassini Catches Saturn Moons in Paintball Fight

Scientists using data from NASA's Cassini spacecraft have learned that distinctive, colorful bands and splotches embellish the surfaces of Saturn's inner, mid-size moons.

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Enceladus May Keep its Oceans Liquid by Wobbling

October 6, 2010

Enceladus May Keep its Oceans Liquid by Wobbling

Cassini helps decode the puzzling heat patterns of the Saturnian moon Enceladus.

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Artist's concept of MAVEN Mars orbiter

October 5, 2010

Thumbs Up Given for 2013 NASA Mars Orbiter

NASA's mission to investigate the mystery of how Mars lost much of its atmosphere has won approval for development, and will move toward a 2013 launch.

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Logo of NASA's EPOXI mission, which is just one month away from its encounter with comet Hartley 2.

October 4, 2010

NASA Mission 'E-Minus' One Month to Comet Flyby

Humanity's fifth close up of a comet nucleus is one month away -- and counting down.

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Europa, a moon of Jupiter, appears as a thick crescent in this enhanced-color image from NASA's Galileo spacecraft, which was orbited Jupiter from 1995 to 2003.

October 4, 2010

Europa's Hidden Ice Chemistry

Jupiter's moon is likely the scene of some unexpectedly fast chemistry between water and sulfur dioxide at extremely cold temperatures.

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This artist's concept shows NASA's Mars Reconnaissance Orbiter

September 29, 2010

Atmosphere Checked, One Mars Year Before a Landing

In preparation for NASA's next rover landing on the Red Planet, one Mars year away, an instrument studying the Martian atmosphere from orbit has begun a campaign.

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Artist's concept of EPOXI headed toward comet Hartley 2

September 29, 2010

NASA's EPOXI Mission Sets Up for Comet Flyby

NASA's EPOXI mission successfully performed a trajectory correction maneuver today. The maneuver refined the spacecraft's orbit for a flyby of comet Hartley 2 on Nov. 4.

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Artist concept of Cassini spacecraft. Image credit: NASA/JPL

September 27, 2010

Hello, Saturn Summer Solstice: Cassini's New Chapter

NASA's Cassini spacecraft begins its Solstice Mission today.

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This false-color composite image, constructed from data obtained by NASA's Cassini spacecraft.

September 23, 2010

New Views of Saturn's Aurora, Captured by Cassini

A new movie and images showing Saturn's shimmering aurora are helping scientists understand what drives some of the solar system's most impressive light shows.

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Artist's concept of Cassini's Sept. 24, 2010, flyby of Saturn's moon Titan

September 23, 2010

Cassini Gazes at Veiled Titan

NASA's Cassini spacecraft will swing high over Saturn's moon Titan to take a long, sustained look.

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Viewing Spark Generated by ChemCam Laser for Mars Rover

September 21, 2010

Laser Tool for Studying Mars Rocks Delivered to JPL

A tool newly delivered from Los Alamos National Laboratory for NASA's Mars rover Curiosity will zap Martian rocks with a laser to learn the rocks' makeup.

Read more

 
Opportunity Heading for Possible Meteorite

September 21, 2010

Mars Rover Opportunity Approaching Possible Meteorite

A dark rock about the size of a toaster oven is visible in images NASA's Mars rover Opportunity took on Sept. 16. It may be a meteorite. The rover is going for a closer look.

Read more

 
False-color image of cloud cover dissolving over Titan's north pole and clouds appearing in the southern mid latitudes.

September 21, 2010

Spring on Titan brings sunshine and patchy clouds

Scientists working with NASA's Cassini spacecraft are creating the first long-term study of Titan's weather.

Read more

 
Artist concept of Mars Reconnaissance Orbiter

September 20, 2010

Orbiter Resumes Science Observations

NASA's Mars Reconnaissance Orbiter resumed observing Mars with its science instruments on Sept. 18, recovering from an unplanned reboot of its computer three days earlier.

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Artist concept of Mars Reconnaissance Orbiter

September 17, 2010

Team Restoring Mars Orbiter After Reboot

NASA's Mars Reconnaissance Orbiter put itself into a precautionary standby mode after experiencing a spontaneous computer reboot on Sept. 15.

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Map showing global compositional variations measured by the Diviner lunar radiometer aboard NASA's Lunar Reconnaissance Orbiter.

September 16, 2010

NASA's LRO Exposes Moon's Complex, Turbulent Youth

The moon's surface is more complex than previously thought and was bombarded by two distinct populations of asteroids or comets in its youth, according to three new papers in the Sept. 17 issue of Science that describe data from NASA's Lunar Reconnaissance Orbiter.

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An artist's concept illustrates what the Mars rover Curiosity will look like on Mars.

September 16, 2010

Five Things About NASA's Mars Curiosity Rover

Mars Science Laboratory, aka Curiosity, is part of NASA's Mars Exploration Program, a long-term program of robotic exploration of the Red Planet.

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Test operators in a clean room at NASA's Jet Propulsion Laboratory, Pasadena, Calif., monitor some of the first motions by the robotic arm.

September 16, 2010

Strong Robotic Arm Extends From Next Mars Rover

Tests underway in a JPL clean room will refine the precision of movements by a robotic arm that can reach more than 7 feet in front of NASA's Curiosity Mars rover.

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The rover, like its smaller predecessors already on Mars, uses a rocker bogie suspension system to drive over uneven ground.

September 13, 2010

NASA's Next Mars Rover Rolls Over Ramps

The rover for NASA's Mars Science Laboratory mission, Curiosity, exercised its mobility system by driving over raised ramps in recent testing at JPL.

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Instruments on NASA's Phoenix Mars Lander included the Thermal and Evolved Gas Analyzer, right, which analyzed the atmosphere, as well as soil samples.

September 9, 2010

NASA Data Shed New Light About Water and Volcanoes on Mars

Data from NASA's Phoenix Mars Lander suggest liquid water has interacted with the Martian surface throughout the planet's history and into modern times.

Read more

 
A fleeting bright dot on each of these images of Jupiter marks a small comet or asteroid burning up in the atmosphere.

September 9, 2010

Caught in the Act: Fireballs Light up Jupiter

Amateur astronomers are first to detect small objects impacting Jupiter

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View from Halfway Through Multi-Year Trek

September 8, 2010

Opportunity Rover Reaches Halfway Point of Long Trek

During a long drive on Labor Day, NASA's Mars Exploration Rover Opportunity reached the estimated halfway point of its journey from Victoria Crater to Endeavour Crater.

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This NASA EPOXI/DIXI Mission image, 60 days from Encounter with comet 103P/Hartley 2

September 8, 2010

Tally-Ho! Deep Impact Spacecraft Eyes Comet Target

NASA's Deep Impact spacecraft has beamed down the first of over 64,000 images it will be taking of Comet Hartley 2.

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NASA's Cassini spacecraft obtained this image of Saturn's moon Dione on Sept. 3, 2010.

September 7, 2010

Cassini Captures a Divine Dione

Cruising past Saturn's moon Dione this past weekend, NASA's Cassini spacecraft got its best look yet at the north polar region of this small, icy moon and returned stark raw images of the fractured, cratered surface.

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Engineers flex Curiosity's robotic arm

September 3, 2010

Next Mars Rover Stretches Robotic Arm

Curiosity, the Mars Science Laboratory rover that will be on Mars two years from now, has been flexing the robotic arm that spacecraft workers at NASA's Jet Propulsion Laboratory attached to the rover body in August 2010.

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NASA engineers test mobility and endurance of the ATHLETE rover on Mission Day 2 at NASA's Desert RATS

September 3, 2010

ATHLETE Rover Steps Up to Long Desert Trek

The ATHLETE rover is poised to go 40 kilometers in the Arizona desert as part of the 2010 Desert RATS test.

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Artist concept of NASA's Phoenix Mars Lander

September 3, 2010

Missing Piece Inspires New Look at Mars Puzzle

Experiments prompted by a 2008 surprise from NASA's Phoenix Mars Lander suggest that soil examined by NASA's Viking Mars landers in 1976 may have contained carbon-based chemical building blocks of life.

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The Solar Probe Plus spacecraft with solar panels folded into the shadows of its protective shield, gathers data on its approach to the Sun.

September 2, 2010

NASA Selects Investigations for First Sun Encounter Mission

NASA has begun development of a mission to visit and study the sun closer than ever before.

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Martian Atmosphere Profiles

August 26, 2010

Tracing the Big Picture of Mars' Atmosphere

One of the instruments on a 2016 mission to orbit Mars will provide daily profiles of the changing structure of the planet's atmosphere.

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This is the first photograph ever taken on the surface of the planet Mars.

August 20, 2010

History-Making Mars Mission Launched 35 Years Ago

NASA's Viking 1 mission, launched on Aug. 20, 1975, put a spacecraft into orbit around Mars and delivered the first successful lander to the Martian surface.

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This image of Penelope crater on Saturn's moon Tethys was obtained by NASA's Cassini spacecraft on August 14, 2010.

August 16, 2010

Move Over Caravaggio: Cassini's Light and Dark Moons

NASA's Cassini spacecraft has returned Saturnian moon images from its flyby late last week, revealing light and dark contrasts worthy of chiaroscuro painters like Caravaggio.

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This image was   taken on Aug. 13, 2010, by the Cassini spacecraft and received on Earth Aug. 14,   2010.

August 14, 2010

Cassini Bags Enceladus 'Tigers'

NASA's Cassini spacecraft has successfully completed its flyby over the "tiger stripes" in the south polar region of Saturn's moon Enceladus and returned intriguing images.

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August 12, 2010

Cassini Hunting Enceladus 'Tigers' with Night Vision

NASA's Cassini spacecraft will be hunting for heat signatures at the "tiger stripes" in the dim south polar region of Saturn's moon Enceladus on Friday, Aug. 13.

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Radar images showing mountainous terrain on Titan

August 12, 2010

Raisin' Mountains on Saturn's Moon Titan

Saturn's moon Titan ripples with mountains, and scientists have been trying to figure out how they form.

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A Geminid meteor

August 6, 2010

How to See the Best Meteor Showers of the Year: Tools, Tips and 'Save the Dates'

Insider tips on 2010 and 2011's meteor showers and how to make the most of each opportunity to watch a visitor from space take that final dive.

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Exposed ice in a fresh crater on Mars

August 4, 2010

Hundreds of New Views from Telescope Orbiting Mars

The most powerful telescopic camera ever to orbit Mars reveals a fresh crater, an ice mound, climate-recording layers and many other views in 314 newly released observations.

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Artist's concept of planned 2016 Mars mission

August 2, 2010

NASA and ESA's First Joint Mission to Mars Selects Instruments

NASA and the European Space Agency (ESA) have embarked on a joint program to explore Mars in the coming decades and selected the five science instruments for the first mission.

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Engineers test ATHLETE outside at JPL

July 30, 2010

NASA's ATHLETE Warms Up for High Desert Run

ATHLETE moon rover must prove it can go the distance before it heads to the Arizona desert for field testing.

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Spirit's view of the soil disturbed by its drives on Mars

July 30, 2010

NASA's Hibernating Mars Rover May Not Call Home

NASA mission controllers have not heard from the Mars Exploration Rover Spirit since March 22, and the rover is facing its toughest challenge yet - trying to survive the harsh Martian winter.

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Sand dunes on Saturn's moon Titan compared to Nambian sand dunes

July 29, 2010

Blowing in the Wind: Cassini Helps with Dune Whodunit

The answer to the mystery of dune patterns on Saturn's moon Titan did turn out to be blowing in the wind.

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Opportunity's first view of a dust devil on Mars

July 28, 2010

Martian Dust Devil Whirls Into Opportunity's View

NASA's Mars Exploration Rover Opportunity has photographed its first dust devil, a challenging feat in the area where Opportunity is working.

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The Curiosity rover rolling for the first time

July 23, 2010

Mars Curiosity Takes First Baby Steps

Like proud parents, mission team members gathered in a gallery above a clean room at NASA's Jet Propulsion Laboratory to watch the Mars Curiosity rover roll for the first time.

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Attaching Curiosity's Mast

July 23, 2010

Curiosity Rover Grows by Leaps and Bounds

In one week, Curiosity grew by approximately 1 meter (3.5 feet) when spacecraft technicians and engineers attached the rover's neck and head (called the Remote Sensing Mast) to its body.

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Valles Marineris on Mars

July 23, 2010

NASA Spacecraft Camera Yields Most Accurate Mars Map

A camera aboard NASA's Mars Odyssey spacecraft has helped develop the most accurate global Martian map ever.

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Artist concept of Mars Odyssey.

July 20, 2010

Orbiter Puts Itself Into Standby Safe Mode

NASA's Mars Odyssey orbiter put itself into a safe standby mode, and the mission team has begun steps to resume the spacecraft's science and relay operations this week.

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Mosaic of images of fan-like structures on Saturn's F ring

July 20, 2010

Cassini Sees Moon Building Giant Snowballs in Saturn Ring

While orbiting Saturn for the last six years, NASA's Cassini spacecraft has kept a close eye on the collisions and disturbances in the gas giant's rings.

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Mars Descent Imager for Curiosity

July 19, 2010

Video Camera Will Show Mars Rover's Touchdown

A downward-pointing camera on the front-left side of NASA's Curiosity rover will give adventure fans worldwide an unprecedented sense of riding a spacecraft to a landing on Mars.

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Artist's concept of Titan's Ontario Lacus

July 15, 2010

See Beautiful Ontario Lacus: Cassini's Guided Tour

This lake on Saturn's moon Titan turns out to be a perfect exotic vacation spot, provided you can handle subzero temperatures and enjoy soaking in liquid hydrocarbon.

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Workers at NASA's Deep Space Network communications site

July 14, 2010

Giant Antenna Propped Up, Ready for Joint Replacement

Workers at NASA's Deep Space Network complex in Goldstone, Calif., are making progress on a major renovation on the 70-meter-wide "Mars antenna."

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Engineers just installed six new wheels on the Curiosity rover, and rotated all six wheels at once on July 9, 2010

July 13, 2010

Curiosity Spins Its Wheels

The wheels that will touch down on Mars in 2012 are several rotations closer to spinning on the rocky trails of Mars.

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NASA's Juno spacecraft on a large rotation fixture

July 12, 2010

Juno Armored Up to Go to Jupiter

NASA's Juno spacecraft, which is currently being assembled, recently received its protective shield.

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Screengrab of WorldWide Telescope software

July 12, 2010

NASA and Microsoft Provide Mars 3-D Close Encounter

NASA and Microsoft Research are bringing Mars to life with new features in the WorldWide Telescope software that provide viewers with a high-resolution 3-D map of the Red Planet.

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Asteroid Lutetia and Saturn

July 9, 2010

Heavy Metal Rock Takes Center Stage

The European Space Agency's Rosetta spacecraft, with NASA instruments aboard, did a close flyby of asteroid Lutetia on Saturday, July 10.

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A propeller-shaped disturbance in Saturn's rings

July 8, 2010

Saturn Propellers Reflect Solar System Origins

Scientists using NASA's Cassini spacecraft at Saturn have stalked a new class of moons in the rings of Saturn that create distinctive propeller-shaped gaps in ring material.

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This raw, unprocessed image of Saturn's moon Daphnis orbiting in a rift in Saturn's rings was taken on July 5, 2010

July 6, 2010

A Closer Look at Daphnis

NASA's Cassini spacecraft has captured the closest images of Saturn's moon Daphnis to date.

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Artist's concept of Cassini's flyby of Saturn's moon Titan

July 6, 2010

Cassini to Dive Low through Titan Atmosphere

As American schoolchildren head out to pools for a summer splash, NASA's Cassini spacecraft will be taking its own deep plunge through the Titan atmosphere this week.

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Mars rover Curiosity with newly installed wheels

July 1, 2010

Next Mars Rover Sports a Set of New Wheels

A new set of spiffy wheels is now affixed to NASA's Mars rover Curiosity. Engineers added the wheels and suspension system this week, during preparations for a planned launch in late 2011.

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Raman spectroscopy of a lunar sample collected by Apollo 17 reveals graphite whiskers, shown in yellow.

July 1, 2010

Man in the Moon has 'Graphite Whiskers'

In a new analysis of a lunar sample collected by Apollo 17, researchers have detected and dated carbon on the moon in the form of graphite.

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Artist's concept of Dawn

June 29, 2010

Engineers Assess Dawn's Reaction Wheel

Engineers are studying the reaction wheels on NASA's Dawn spacecraft after automatic sensors detected excess friction building up in one of them.

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Super-Resolution View of Endeavour Rim, Sol 2239

June 29, 2010

NASA Mars Rover Seeing Destination in More Detail

A super-resolution view toward Endeavour Crater from NASA's Mars Exploration Rover Opportunity shows discernible features in the rim of that long-term destination.

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Artist's concept of EPOXI headed toward comet Hartley 2

June 28, 2010

'Hitchhiker' EPOXI: Next Stop, Comet Hartley 2

NASA's EPOXI spacecraft "hitched a ride" on Earth's gravity field and is now heading toward its appointment with comet Hartley 2 this fall.

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Artist's concept of Voyager 2

June 28, 2010

Voyager 2 at 12,000 Days: The Super-Marathon Continues

NASA's plucky Voyager 2 spacecraft has hit a long-haul operations milestone today -- operating continuously for 12,000 days.

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Decades of work preparing a miniaturized laboratory for identifying minerals on Mars

June 28, 2010

NASA Instrument Will Identify Clues to Martian Past

NASA's Curiosity rover, coming together for a late 2011 launch to Mars, has a newly installed component: a key onboard X-ray instrument for helping the mission achieve its goals.

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Artist's concept of the Deep Impact/EPOXI spacecraft

June 25, 2010

Earth to Lend Helping Hand to Comet Craft

NASA's Deep Impact/EPOXI spacecraft will fly past Earth this Sunday, June 27.

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Lyot Crater on Mars

June 24, 2010

New Clues Suggest Wet Era on Early Mars Was Global

Minerals in northern Mars craters seen by two orbiters suggest that a phase in Mars' early history with conditions favorable to life occurred globally, not just in the south.

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Cassini Getting the Lowdown on Titan This Weekend

June 17, 2010

Cassini Getting the Lowdown on Titan This Weekend

NASA's Cassini spacecraft will take its lowest dip through the hazy atmosphere of Saturn's moon Titan in the early morning of June 21 UTC, or June 20 Pacific Time.

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Martian pit feature found by seventh graders

June 17, 2010

Seventh Graders Find a Cave on Mars

California middle school students using the camera on NASA's Mars Odyssey orbiter have found lava tubes with one pit that appears to be a skylight to a cave.

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Test at NASA Dryden of radar system for next Mars landing

June 11, 2010

NASA Dryden Hosts Radar Tests for Next Mars Landing

Engineers have finished a key step in testing the radar system for NASA's next mission to Mars, using helicopter flights at the NASA Dryden Flight Research Center, Edwards, Calif.

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Northern hemisphere gullies on west-facing crater slope, Mars

June 9, 2010

Detailed Martian Scenes in New Images from Mars Orbiter

Six hundred recent observations of the Mars landscape from an orbiting telescopic camera include scenes of sinuous gullies, geometrical ridges and steep cliffs.

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Artist's concept of the Hayabusa spacecraft (left) and sample return capsule (right)

June 8, 2010

NASA Helps in Upcoming Asteroid Mission Homecoming

A Japanese spacecraft will return a capsule to Earth on June 13 in a uninhabited area of South Australia. NASA scientists and engineers have played a contributing role in the mission.

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Artist's concept of Dawn

June 7, 2010

NASA's Dawn Spacecraft Fires Past Record for Speed Change

NASA's ion-propelled Dawn spacecraft has eclipsed the record for velocity change produced by a spacecraft's engines.

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Artist's concept of Cassini's June 4, 2010, flyby of Saturn's moon Titan

June 3, 2010

Next Stop, Titan: Looking at the Land o' Lakes

NASA's Cassini spacecraft will be eyeing the north polar region of Saturn's moon Titan this weekend, scanning the moon's land o' lakes.

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Artist concept showing a lake on Saturn's moon Titan

June 3, 2010

What is Consuming Hydrogen and Acetylene on Titan?

Two new papers based on data from NASA's Cassini spacecraft scrutinize the complex chemical activity on the surface of Saturn's moon Titan.

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Lengthy detective work with data NASA's Mars Exploration Rover Spirit collected in late 2005 has confirmed that an outcrop called 'Comanche'

June 3, 2010

NASA Rover Finds Clue to Mars' Past and Environment for Life

Rocks examined by NASA's Spirit Mars Rover hold evidence of a wet, non-acidic ancient environment that may have been favorable for life.

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Artist's concept of Epoxi spacecraft

May 28, 2010

NASA Spacecraft Burns for Home, Then Comet

NASA's Deep Impact/Epoxi spacecraft successfully performed a maneuver to refine its orbit prior to an upcoming Earth flyby June 27.

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Graphic depicting the trajectory of near-Earth object 2010 KQ

May 27, 2010

Small Near-Earth Object Probably a Rocket Part

Scientists have determined that a small object that safely passed Earth on May 21 is more than likely an upper-stage of a rocket.

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Northern Ice Cap of Mars

May 26, 2010

NASA Orbiter Penetrates Mysteries of Martian Ice Cap

Data from NASA's Mars Reconnaissance Orbiter have helped scientists solve a pair of decades-old mysteries and provided new information about climate change on Mars.

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The Phoenix Mars Lander in 2008 (top) and 2010 (bottom)

May 24, 2010

Phoenix Mars Lander is Silent, New Image Shows Damage

NASA's Phoenix Mars Lander has ended operations after repeated, unsuccessful attempts to contact the lander, and a new orbiter image shows signs of ice damage to Phoenix.

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Artist's concept of Voyager 2

May 24, 2010

Engineers Diagnosing Voyager 2 Data System -- Update

Engineers successfully reset a computer onboard Voyager 2 that caused an unexpected data pattern shift, and the spacecraft resumed sending properly formatted science data back to Earth on Sunday, May 23

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NEOWISE principal investigator Amy Mainzer describes the ongoing tally of space rocks and comets amassed

May 24, 2010

WISE Makes Progress on Its Space Rock Catalog

NASA's Wide-field Infrared Survey Explorer, or WISE, is busy surveying the landscape of the infrared sky, building up a catalog of cosmic specimens -- everything from distant galaxies to "failed" stars, called brown dwarfs.

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Artist's concept of Curiosity

May 20, 2010

Geometry Drives Selection Date for 2011 Mars Launch

For optimal communications during arrival at Mars, NASA's Mars Science Laboratory, or Curiosity, will launch after Thanksgiving 2011 and land on Mars in August 2012.

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NASA's Mars Exploration Rover Opportunity used its navigation camera for this northward view of tracks the rover left on a drive from one energy-favorable position on the northern end of a sand ripple to another.

May 19, 2010

NASA's Mars Rovers Set Surface Longevity Record

NASA's Mars Exploration Rover Project will pass a historic Martian longevity record on Thursday, May 20.

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This raw, unprocessed image of Titan behind Saturn's rings was taken on May 18, 2010, by the Cassini spacecraft.

May 19, 2010

Cassini Heading to Titan after Tagging Enceladus

Scientists rate Cassini's 10th flyby of Enceladus... a 10.

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Saturn's moon Enceladus (left) and Titan (right)

May 17, 2010

Cassini Double Play: Enceladus and Titan

About a month and a half after its last double flyby, NASA's Cassini spacecraft will be turning another double play this week, visiting Enceladus and Titan.

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Artist concept of NASA's Mars Odyssey orbiter

May 13, 2010

Final Attempts to Hear from Mars Phoenix Scheduled

From May 17 to 21, NASA's Mars Odyssey orbiter will conduct a fourth and final campaign to check on whether the Phoenix Mars Lander has come back to life.

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Artist renditon of Mars and an image from Opportunity

May 12, 2010

Mars Image Takes Earth Photo Event to a New World

When some Mars explorers learned of plans for a worldwide photography event combining shots taken from thousands of different locations on May 2, 2010, they figured, "Why just one world?"

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The left-hand image, obtained by the European Space Agency's Huygens probe, shows rounded rocks from the surface of Saturn's moon Titan.

May 11, 2010

Rock and Roll: Titan's Gem Tumbler

It appears flash flooding has paved streambeds in the Xanadu region of Saturn's moon Titan with thousands of sparkling crystal balls of ice, according to scientists with NASA's Cassini spacecraft.

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Intra-crater structure in NW Hellas Basin, Mars

May 5, 2010

New Martian Views From Orbiting Camera Show Diversity

New images from more than 750 recent observations of Mars by an orbiting telescopic camera testify to the diversity of landscapes there.

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This image shows an outcrop of rocks at the foot of the rover and beyond these rocks rippled dunes

April 30, 2010

Mars Rover Sees Distant Crater Rims on Horizon

NASA's Mars Exploration Rover Opportunity has captured a new view of the rim of Endeavour crater, the rover's destination in a multi-year traverse along the sandy Martian landscape.

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NASA's Casini spacecraft obtained this raw image of Enceladus on April 26, 2010.

April 30, 2010

Cassini Returning Enceladus Gravity Data

NASA's Cassini spacecraft successfully completed its 26-hour gravity observation at Saturn’s moon Enceladus this week.

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A storm on Saturn

April 29, 2010

Cassini and Amateurs Chase Storm on Saturn

With the help of amateur astronomers, the composite infrared spectrometer instrument aboard NASA's Cassini spacecraft has taken its first look at a massive blizzard in Saturn's atmosphere.

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asteroid 2005 YU55

April 29, 2010

Radar Clicks Asteroid's Pic

Near-Earth asteroid 2005 YU55 was "imaged" by the Arecibo Radar Telescope in Puerto Rico on April 19.

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artist's concept of an asteroid belt

April 28, 2010

Scientists Say Ice Lurks In Asteroid's Cold Heart

Scientists using a NASA funded telescope have detected water-ice and carbon-based organic compounds on the surface of an asteroid.

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Cassini Measures Tug of Enceladus

April 26, 2010

Cassini Measures Tug of Enceladus

NASA's Cassini spacecraft will be gliding low over Saturn's moon Enceladus for a gravity experiment designed to probe the moon's interior composition.

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meteor over southwestern Wisconsin

April 15, 2010

Wisconsin Fireball Caught On Tape

A rooftop webcam at the University of Wisconsin-Madison captured the final seconds of a fireball's Wednesday, April 14 descent into the atmosphere.

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First lightning flashes on saturn

April 14, 2010

Flash: NASA's Cassini Sees Lightning on Saturn

NASA's Cassini spacecraft has captured images of lightning on Saturn. The images have allowed scientists to create the first movie showing lightning flashing on another planet.

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Comet McNaught

April 13, 2010

Ulysses Spacecraft Data Reveal a Comet Biggie

Using data from the completed ESA/NASA Ulysses mission, scientists have identified a new candidate for biggest comet.

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Artist concept of NASA's Mars Odyssey orbiter

April 13, 2010

No Peep from Phoenix in Third Odyssey Listening Stint

NASA's Mars Odyssey orbiter heard no signal from the Phoenix Mars Lander when it listened from orbit while passing over Phoenix 60 times last week.

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Preparation for and testing of MSL radar system

April 13, 2010

Helicopter Helps Test Radar for 2012 Mars Landing

This spring, engineers are testing a radar system that will serve during the next landing on Mars.

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Saturn's moon Dione

April 12, 2010

Cassini Finishes Saturnian Doubleheader

NASA's Cassini spacecraft completed its double flyby this week, swinging by Saturn's moons Titan and Dione with no maneuver in between.

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Surface warmth on a Venus volcano

April 8, 2010

NASA-Funded Research Suggests Venus is Geologically Alive

For the first time, scientists have detected clear signs of recent lava flows on the surface of Venus.

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Meteor from Kappa Cygnid Meteor Shower.

April 7, 2010

Meteor Showers: Shooting for Shooting Stars

Meteor showers – one of the many benefits to living on a planet with an atmosphere.

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Two camera's for MSL (left) and principle investigator Michael Malin (rght)

April 6, 2010

San Diego Team Delivers Camera for Next Mars Rover

JPL has received the two cameras for the Mast Camera instrument, the science-imaging workhorse of NASA's Mars Science Laboratory rover, to be launched next year.

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Orbit of asteroid 2010 GA6

April 6, 2010

Asteroid to Fly by Within Moon's Orbit Thursday

A newly discovered asteroid, 2010 GA6, will safely fly by Earth this Thursday at 7:06 p.m. Pacific (2:06 U.T.C.).

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Juno during assembly

April 5, 2010

Juno Taking Shape in Denver

Assembly has begun on NASA's Juno spacecraft, which will help scientists understand the origin and evolution of Jupiter.

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Composite of Saturn's moons Titan and Dione

April 2, 2010

Cassini Doubleheader: Flying By Titan and Dione

In a special double flyby early next week, NASA's Cassini spacecraft will visit Saturn's moons Titan and Dione within a period of about a day and a half, with no maneuvers in between.

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Phoenix Mars Lander and surrounding ground as seen from orbit on Feb. 25, 2010.

April 2, 2010

Third Listening Period to Begin Monday, April 5

From April 5 through April 9, NASA's Mars Odyssey orbiter will conduct a third campaign to check whether the Phoenix Mars Lander has come back to life after experiencing a Martian arctic winter it was not designed to survive.

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An artist's concept of a NASA Mars Exploration Rover

March 31, 2010

Spirit May Have Begun Months-Long Hibernation

NASA's Mars Exploration Rover Spirit skipped a planned communication session on March 30 and, as anticipated from recent power-supply projections, has probably entered a low-power hibernation mode.

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composite of martian images taken by the Mars Reconnaissance Orbiter

March 31, 2010

NASA Mars Spacecraft Snaps Photos Chosen by Public

The most powerful camera aboard a NASA spacecraft orbiting Mars has returned the first pictures of locations on the Red Planet suggested by the public.

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Pattern of daytime temperatures on Mimas

March 29, 2010

1980s Video Icon Glows on Saturn Moon

The highest-resolution-yet temperature map and images of Saturn's icy moon Mimas obtained by NASA's Cassini spacecraft reveal surprising patterns on the surface of the small moon, including unexpected hot regions that resemble "Pac-Man" eating a dot, and striking bands of light and dark in crater walls.

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An artist's concept of a NASA Mars Exploration Rover

March 25, 2010

Space Operations Award Going to Mars Rover Team

The team that operates NASA's Mars rovers Spirit and Opportunity will receive the 2010 International Space Ops Award for Outstanding Achievement.

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NASA's Mars Exploration Rover used its panoramic camera to record this view of the rim of a crater about 65 kilometers (40 miles) in the distance, on the southwestern horizon.

March 24, 2010

Opportunity Surpasses 20 Kilometers of Total Driving

NASA's Mars Exploration Rover Opportunity today surpassed 20 kilometers (12.43 miles) of total driving since it landed on Mars 74 months ago.

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This image shows NASA's Mars Exploration Rover Opportunity perched on the edge of 'Concepción' crater in Meridiani Planum, Mars.

March 24, 2010

Mars Rover Examines Odd Material at Small, Young Crater

Weird coatings on rocks beside a young Martian crater remain puzzling after a preliminary look at data from examination of the site by NASA's Opportunity rover.

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Mars imaged by Opportunity

March 23, 2010

NASA Mars Rover Getting Smarter as it Gets Older

NASA's Mars Exploration Rover Opportunity, now in its seventh year on Mars, has a new capability to make its own choices about whether to make additional observations of rocks that it spots on arrival at a new location.

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This natural color view from the Cassini spacecraft highlights the myriad gradations in the transparency of Saturn's inner rings.

March 18, 2010

Cassini Shows Saturnian Roller Derby, Strange Weather

From Earth, Saturn may look like a peaceful orb, but NASA's Cassini spacecraft has revealed a rough and tumble roller derby among the gas giant's rings.

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Jupiter's Great Red Spot

March 16, 2010

See Spot on Jupiter. See Spot Glow.

Scientists Get First Look at Weather Inside the Solar System's Biggest Storm.

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This artist's illustration shows the likely interior structure of Saturn's moon Titan deduced from gravity field data collected by NASA's Cassini spacecraft.

March 11, 2010

Cassini Data Show Ice and Rock Mixture Inside Titan

By precisely tracking NASA's Cassini spacecraft on its low swoops over Saturn's moon Titan, scientists have determined the distribution of materials in the moon's interior.

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Titan's Sikun Labyrinthus (artist's concept)

March 4, 2010

Is That Saturn's Moon Titan or Utah?

Planetary scientists, who have been puzzling for years over the surface features on Saturn's moon Titan, have now found some recognizable analogies to a type of terrain on Earth known as karst topography.

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Changes in Ripples on Martian Dunes in Nili Patera

March 4, 2010

Mars Dunes: On the Move?

Mars has diversity. In at least one area, Martian sand dunes are actively migrating. In another, they have been stationary for 100,000 years.

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Inverted crater in the Arabia Terra region of Mars

March 3, 2010

NASA Mars Orbiter Speeds Past Data Milestone

NASA's newest Mars orbiter has passed a data-volume milestone unimaginable a generation ago and still difficult to fathom - 100 terabits.

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A radar on NASA's Mars Reconnaissance Orbiter has detected widespread deposits of glacial ice in the mid-latitudes of Mars.

March 2, 2010

Radar Map of Buried Martian Ice Adds to Climate Record

Extensive radar mapping of the middle-latitude region of northern Mars shows that thick masses of buried ice are quite common beneath protective coverings of rubble.

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Amanda Hendrix

March 1, 2010

On the JPL Blog: Road-Tripping to Rhea with Cassini

On Tuesday, March 2, 2010, NASA's Cassini spacecraft will make its closest encounter yet with Saturn’s second largest moon.

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Phoenix Mars Lander and surrounding ground as seen from orbit on Feb. 25, 2010.

February 23, 2010

No Signal Heard During First Day of Resumed Listening for Phoenix

NASA's Mars Odyssey began a second campaign Monday to check on whether the Phoenix Mars Lander has revived itself after the northern Martian winter.

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Pockets of heat on Enceladus

February 23, 2010

Cassini Finds Plethora of Plumes, Hotspots at Enceladus

Newly released image