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astronaut scott kelly year in space nasa record breaking orig nws_00010603
astronaut scott kelly year in space nasa record breaking orig nws_00010603

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    Astronaut's record-breaking year in space

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Astronaut's record-breaking year in space

CNN's Rachel Crane explains how the last year has affected NASA astronaut Scott Kelly and why his stay on the International Space Station matters.

Astronaut's record-breaking year in space

CNN's Rachel Crane explains how the last year has affected NASA astronaut Scott Kelly and why his stay on the International Space Station matters.