Scott Kelly Spent a Year in Orbit. His Body Is Not Quite the Same. by CARL ZIMMER

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NASA scientists compared the astronaut to his earthbound twin, Mark. The results hint at what humans will have to endure on long journeys through space.

Published: April 11, 2019 at 02:00AM

from #NYT Science Read the full article here: https://nyti.ms/2InnD3v