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What Expedition 43 will tell us about human survival in space

What Expedition 43 will tell us about human survival in space

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The 43rd mission to the International Space Station is a record-breaking one for its crew members. NASA astronaut Scott Kelly and Russian cosmonaut Mikhail Kornienko will be the first two people to spend an entire year aboard the ISS, and cosmonaut Gennady Padalka will break the all-time record for days spent in space.