ISS commander

Peggy Whitson Takes Command of the International Space Station for the Second Time

Apr 12, 2017 AM EDT Peggy Whitson, NASA's most experienced astronaut took command of the international space station for the second time. Her first stint as commander was on 2007.

Why ISS Astronauts Will Be Like Babies Again When They Return To Earth [Video]

Apr 10, 2017 PM EDT Astronauts who get used to space need time to relearn how to live on Earth again.

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