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astronaut scott kelly year in space nasa record breaking orig nws_00010410
astronaut scott kelly year in space nasa record breaking orig nws_00010410

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    What we can learn from Scott Kelly's year in space

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What we can learn from Scott Kelly's year in space

NASA scientist John Charles tells Kristie Lu Stout what we hope to learn about our ability to endure spaceflight from Scott Kelly's year in orbit

What we can learn from Scott Kelly's year in space

NASA scientist John Charles tells Kristie Lu Stout what we hope to learn about our ability to endure spaceflight from Scott Kelly's year in orbit