International Space Station (ISS) crew member Scott Kelly of the U.S. shows a victory sign after landing near the town of Dzhezkazgan, Kazakhstan, on Wednesday, March 2, 2016. The Soyuz TMA-18M spacecraft landed with Expedition 46 Commander Scott Kelly of NASA and Russian cosmonauts Mikhail Kornienko and Sergey Volkov of Roscosmos. Kelly and Kornienko are completing an International Space Station record year-long mission to collect valuable data on the effect of long duration weightlessness on the human body that will be used to formulate a human mission to Mars. Volkov is returning after six months on the station. (Krill Kudryavtsev/Pool photo via AP)

Astronaut back from record year in space

Astronaut Scott Kelly returned to Earth on Wednesday after an unprecedented year in space for NASA, landing in barren Kazakhstan with a Russ…