NASA/JPL-Caltech

Bon Voyage, Voyager: Old Friends Take Stock

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The most abundant meteorites found in Antarctica are called chondrites. They are some of the oldest objects known in the solar system. Katherine Joy/Antarctic Search for Meteorites Program / Case Western Reserve University hide caption

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Katherine Joy/Antarctic Search for Meteorites Program / Case Western Reserve University

The Hunt For Meteorites Begins In Antarctica

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Never mind holiday stress. Steer clear of black holes, or risk "spaghettification" — or worse. Katherine Streeter for NPR hide caption

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Katherine Streeter for NPR

Stretch Or Splat? How A Black Hole Kills You Matters ... A Lot

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Space Station Gets Fixed In Christmas Eve Space Walk

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The iconic "Earthrise" photo taken by astronaut Bill Anders through a window on the Apollo 8 command module on Dec. 24, 1968. Bill Anders/NASA hide caption

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Bill Anders/NASA

On Anniversary Of Apollo 8, How The 'Earthrise' Photo Was Made

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55 Years Later: Commemorating First Space Broadcast

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Astronauts On Spacewalk Begin Space Station Repair

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NASA astronaut Chris Cassidy performs a spacewalk in May to inspect and replace a pump controller box on the International Space Station. On Saturday, two astronauts will perform the first in a series of similar spacewalks to fix a broken cooling line on the ISS. AP hide caption

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AP

Astronauts Ready For Marathon Spacewalks

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An image showing the distribution of massive stars in the new study. Our location within the Galaxy is circled in black. J. Urquhart et al./Background image by Robert Hurt of the Spitzer Science Center. hide caption

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J. Urquhart et al./Background image by Robert Hurt of the Spitzer Science Center.

Moon Landing Is A Major Step Forward For China

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China Lands A Rover On The Moon

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