NASA
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How do ISS astronauts maintain their health?
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UFO spotted in NASA video of ISS repair: Real or fake? [Video]
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It's a Mars rehearsal: Team studies isolation effects under dome in Hawaii
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NASA Mars orbiter Odyssey survives comet Siding Spring flyby, sends back photos as proof
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2014 is set to be the warmest year on record
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How to watch partial solar eclipse on Oct. 23
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NASA Mars Odyssey orbiter watches Siding Spring comet zip past at a hair's breadth
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NASA preps for Comet Siding Spring's Mars flyby: Why scientists are going gaga over it
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NASA says 1934 Dust Bowl was worst drought in 1,000 years: Here's what NASA didn't say
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NASA's IRIS unlocks more mysteries about our sun
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Anthropocene: Scientists coin a new term for the age of humans
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NASA: The worst drought of the millennium was in 1934
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