This artist's concept shows a possible model of Titan's internal structure

March 5, 2014

Cassini Nears 100th Titan Flyby with a Look Back

On the eve of NASA Cassini's 100th flyby of Titan, scientists are reminded how Earth-like this Saturn moon really is.

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These images show sea surface temperatures of the Beaufort Sea where Canada's Mackenzie River discharges into the Arctic Ocean

March 5, 2014

NASA: Warm Rivers Play Role in Arctic Sea Ice Melt

The heat from warm river waters draining into the Arctic Ocean is contributing to the melting of Arctic sea ice each summer, a new NASA study finds.

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Asteroid 2014 DX110 Flyby of Earth on March 5, 2014

March 4, 2014

Asteroid Will Safely Pass Closer Than Moon Wednesday

As happens about 20 times a year with current detection capabilities, a known asteroid will safely pass Earth Wednesday closer than the distance from Earth to the moon.

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An infrared portrait of Comet NEOWISE (C/2014 C3)

February 28, 2014

NEOWISE Spies Its First Comet

NASA's NEOWISE spacecraft has spotted its first new comet since coming out of hibernation late last year.

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Electra Relay Radio on MAVEN Mission to Mars

February 28, 2014

Relay Radio on Mars-Bound NASA Craft Passes Checkout

With completion of a checkout of the relay radio on NASA's Mars-bound MAVEN spacecraft, all of the onboard payloads have now successfully passed initial in-flight checkouts.

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Microtunnels in Yamato Meteorite From Mars

February 27, 2014

NASA Scientists Find Evidence of Water in Meteorite, Reviving Debate Over Life on Mars

Scientists at NASA's Johnson Space Center in Houston and JPL have found evidence of past water movement throughout a Martian meteorite, reviving debate over life on Mars.

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Global Precipitation Measurement

February 27, 2014

NASA-JAXA Launch Mission to Measure Global Rain, Snow

The core satellite for a new NASA-Japan Aerospace Exploration Agency mission that will provide unprecedented observations of Earth's rain and snow has launched from Japan.

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Martian Landscape With Rock Rows and Mount Sharp

February 26, 2014

NASA's Curiosity Mars Rover Views Striated Ground

A landscape scene photographed by NASA's Curiosity Mars rover shows rock rows forming striations in the foreground and Mount Sharp on the horizon.

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The artist concept depicts multiple-transiting planet systems

February 26, 2014

NASA's Kepler Mission Announces a Planet Bonanza

NASA's Kepler mission announced Wednesday the discovery of 715 new planets.

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The closest supernova of its kind to be observed in the last few decades

February 26, 2014

Spitzer Stares into the Heart of New Supernova in M82

One of the closest supernovas to go off in the last few decades is putting on a good show for telescopes on the ground and in space.

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