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This set of three images shows views three seconds apart as the larger of Mars' two moons, Phobos, passed directly in front of the sun as seen by NASA's Mars rover Curiosity.
This set of three images shows views three seconds apart as the larger of Mars' two moons, Phobos, passed directly in front of the sun as seen by NASA's Mars rover Curiosity.

Annular Eclipse of the Sun by Phobos, as Seen by Curiosity

The comparison from NASA's Hubble telescope and Chandra X-ray Observatory highlights how different the universe can look when viewed in other wavelengths of light. M82 is located 12 million light-years away in the Ursa Major constellation.
The comparison from NASA's Hubble telescope and Chandra X-ray Observatory highlights how different the universe can look when viewed in other wavelengths of light. M82 is located 12 million light-years away in the Ursa Major constellation.

Galaxy in Different Lights

This image from NASA's Mars rover Curiosity provides a comparison for how big the moons of Mars appear to be, as seen from the surface of Mars, in relation to the size that Earth's moon appears to be when seen from the surface of Earth.
This image from NASA's Mars rover Curiosity provides a comparison for how big the moons of Mars appear to be, as seen from the surface of Mars, in relation to the size that Earth's moon appears to be when seen from the surface of Earth.

Illustration Comparing Apparent Sizes of Moons

This image, taken on Aug. 4, 2014, from the Navigation Camera on NASA's Curiosity Mars rover shows wheel tracks printed by the rover as it drove on the sandy floor of a lowland called 'Hidden Valley' on the route toward Mount Sharp.
This image, taken on Aug. 4, 2014, from the Navigation Camera on NASA's Curiosity Mars rover shows wheel tracks printed by the rover as it drove on the sandy floor of a lowland called 'Hidden Valley' on the route toward Mount Sharp.

Curiosity Tracks in 'Hidden Valley' on Mars

A new day dawns on Saturn as the part of the planet is seen emerging once more into the Sun's light by NASA's Cassini orbiter. With an estimated rotation period of 10 hours and 40 minutes, Saturn's days and nights are much shorter than those on Earth.
A new day dawns on Saturn as the part of the planet is seen emerging once more into the Sun's light by NASA's Cassini orbiter. With an estimated rotation period of 10 hours and 40 minutes, Saturn's days and nights are much shorter than those on Earth.

Sunrise on Saturn

This image obtained by the framing camera on NASA's Dawn spacecraft shows the south pole of the giant asteroid Vesta.
This image obtained by the framing camera on NASA's Dawn spacecraft shows the south pole of the giant asteroid Vesta.

Viewing the South Pole of Vesta

This artist's concept depicts NASA's Voyager 1 spacecraft entering interstellar space.
This artist's concept depicts NASA's Voyager 1 spacecraft entering interstellar space.

Voyager 1 Entering Interstellar Space (Artist Concept)

Our sky is filled with a diffuse background glow, known as the cosmic infrared background. Much of the light is from galaxies we know about, but previous Spitzer measurements have shown an extra component of unknown origin.
Our sky is filled with a diffuse background glow, known as the cosmic infrared background. Much of the light is from galaxies we know about, but previous Spitzer measurements have shown an extra component of unknown origin.

First Stars or Stray Stars? A Cosmic Infrared Mystery

Voyager 1 has entered interstellar space. NASA's spacecraft, which rose from Earth on a September morning 36 years ago, has traveled farther than anyone, or anything, in history.
Voyager 1 has entered interstellar space. NASA's spacecraft, which rose from Earth on a September morning 36 years ago, has traveled farther than anyone, or anything, in history.

Voyager Goes Interstellar (Artist Concept)

This image shows the robotic arm of NASA's Mars rover Curiosity with the first rock touched by an instrument on the arm. The rover placed the APXS instrument onto the rock to assess what chemical elements were present in the rock.
This image shows the robotic arm of NASA's Mars rover Curiosity with the first rock touched by an instrument on the arm. The rover placed the APXS instrument onto the rock to assess what chemical elements were present in the rock.

Curiosity's Rock-Contact Science Begins

NASA's Mars rover Curiosity drove about 70 feet (about 21 meters) on the mission's 21st Martian day, or sol (Aug. 30, 2012) and then took images with its Navigation Camera that are combined into this scene, which inclues the fresh tracks.
NASA's Mars rover Curiosity drove about 70 feet (about 21 meters) on the mission's 21st Martian day, or sol (Aug. 30, 2012) and then took images with its Navigation Camera that are combined into this scene, which inclues the fresh tracks.

Looking Back at Tracks from Sol 24 Drive

This artist's concept shows the NASA's WISE spacecraft, in its orbit around Earth. In September of 2013, engineers will attempt to bring the mission out of hibernation to hunt for more asteroids and comets in a project called NEOWISE.
This artist's concept shows the NASA's WISE spacecraft, in its orbit around Earth. In September of 2013, engineers will attempt to bring the mission out of hibernation to hunt for more asteroids and comets in a project called NEOWISE.

NEOWISE: Back to Hunt More Asteroids (Artist Concept)

This view of Jupiter was taken by Voyager 1. This image was taken through color filters and recombined to produce the color image. This photo was assembled from three black and white negatives by the Image Processing Lab at Jet Propulsion Laboratory.
This view of Jupiter was taken by Voyager 1. This image was taken through color filters and recombined to produce the color image. This photo was assembled from three black and white negatives by the Image Processing Lab at Jet Propulsion Laboratory.

Jupiter's Great Red Spot

This artist's concept shows the planet catalogued as 2003UB313 at the lonely outer fringes of our solar system. Our Sun can be seen in the distance. The new planet is at least as big as Pluto and about three times farther away from the Sun than Pluto.
This artist's concept shows the planet catalogued as 2003UB313 at the lonely outer fringes of our solar system. Our Sun can be seen in the distance. The new planet is at least as big as Pluto and about three times farther away from the Sun than Pluto.

Newest Member of Our Solar System (Artist's Concept)

This view of Curiosity's left-front and left-center wheels and of marks made by wheels on the ground in the 'Yellowknife Bay' area comes from one of six cameras used on Mars for the first time more than six months after the rover landed.
This view of Curiosity's left-front and left-center wheels and of marks made by wheels on the ground in the 'Yellowknife Bay' area comes from one of six cameras used on Mars for the first time more than six months after the rover landed.

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

NASA's Curiosity rover shows the first sample of powdered rock extracted by the rover's drill. The image was taken after the sample was transferred from the drill to the rover's scoop.
NASA's Curiosity rover shows the first sample of powdered rock extracted by the rover's drill. The image was taken after the sample was transferred from the drill to the rover's scoop.

First Curiosity Drilling Sample in the Scoop

This artist's concept illustrates the fate of two different planets: the one on the left is similar to Earth, made up largely of silicate-based rocks with oceans coating its surface.
This artist's concept illustrates the fate of two different planets: the one on the left is similar to Earth, made up largely of silicate-based rocks with oceans coating its surface.

A Tale of Two Worlds: Silicate Versus Carbon Planets (Artist Concept)

Artist's concept of a magneto-optical trap and atom chip to be used by NASA's Cold Atom Laboratory (CAL) aboard the International Space Station.
Artist's concept of a magneto-optical trap and atom chip to be used by NASA's Cold Atom Laboratory (CAL) aboard the International Space Station.

NASA's Cold Atom Laboratory (CAL) Chip (Artist's Concept)

Hours after the June 28, 2014, test of NASA's Low-Density Supersonic Decelerator over the U.S. Navy's Pacific Missile Range, the saucer-shaped test vehicle is lifted aboard the Kahana recovery vessel.
Hours after the June 28, 2014, test of NASA's Low-Density Supersonic Decelerator over the U.S. Navy's Pacific Missile Range, the saucer-shaped test vehicle is lifted aboard the Kahana recovery vessel.

Saucer Out of the Drink

This image shows the first holes drilled by NASA's Mars rover Curiosity at Mount Sharp. The loose material near the drill holes is drill tailings and an accumulation of dust that slid down the rock during drilling.
This image shows the first holes drilled by NASA's Mars rover Curiosity at Mount Sharp. The loose material near the drill holes is drill tailings and an accumulation of dust that slid down the rock during drilling.

'Confidence Hills' -- The First Mount Sharp Drilling Site

Smooth surfaces of windblown sand and dust of the 'Rocknest' area signal an appropriate place for NASA's Curiosity to collect and use the mission's first few scoopfuls of soil.
Smooth surfaces of windblown sand and dust of the 'Rocknest' area signal an appropriate place for NASA's Curiosity to collect and use the mission's first few scoopfuls of soil.

Curiosity's Location During First Scooping

The recently formed south polar vortex stands out in the color-swaddled atmosphere of Saturn's largest moon, Titan, in this natural color view from NASA's Cassini spacecraft.
The recently formed south polar vortex stands out in the color-swaddled atmosphere of Saturn's largest moon, Titan, in this natural color view from NASA's Cassini spacecraft.

Polar Vortex in Color

This artist's concept illustrates how charged water particles flow into the Saturnian atmosphere from the planet's rings, causing a reduction in atmospheric brightness.
This artist's concept illustrates how charged water particles flow into the Saturnian atmosphere from the planet's rings, causing a reduction in atmospheric brightness.

Saturn's Ring 'Rain' (Artist Concept)

Cape Town and the Cape of Good Hope, South Africa, appear in the foreground of this perspective view generated from a Landsat satellite image and elevation data from NASA's Space Shuttle Endeavour.
Cape Town and the Cape of Good Hope, South Africa, appear in the foreground of this perspective view generated from a Landsat satellite image and elevation data from NASA's Space Shuttle Endeavour.

Cape Town, South Africa, Perspective View, Landsat Image over SRTM Elevation

On April 28, 2014, NASA's Terra spacecraft spotted signs of activity at Ubinas volcano in the Peruvian Andes. The appearance of a new lava dome in March 2014 and frequent ash emissions are signs of increasing activity at this volcano.
On April 28, 2014, NASA's Terra spacecraft spotted signs of activity at Ubinas volcano in the Peruvian Andes. The appearance of a new lava dome in March 2014 and frequent ash emissions are signs of increasing activity at this volcano.

Ubinas Volcano Activity in Peruvian Andes

Currently displaying images 126-150 of 186
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