On Tuesday, American astronaut Scott Kelly returned to Earth after spending 1 year aboard the International Space Station. Kelly, along with Russian cosmonauts Sergey Volkov and Mikhail Kornienko touched down in Kazakstan. NASA will evaluate Kelly as they try to learn more about the effects of space on the human body, in preparation for a mission to Mars in the 2030's. During his year in space, Kelly orbited the Earth 5,440 times! Read more here!
Written by educator Charlton Brownell
Written by educator Charlton Brownell
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