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A YEAR IN SPACE

Space Twins

  • Aired: 03/02/2016
  • 02:11
  • Rating: TV-PG
Using data from identical twin astronauts Mark and Scott Kelly, NASA’s twin study is investigating the long-term effects of space travel on the human body. The results will be used to help get humans to Mars.
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Space Twins
Space Twins
Twin astronauts Scott and Mark Kelly are ideal subjects for studying the effects of space.
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