One-year mission crew members Scott Kelly of NASA, right, Mikhail Kornienko of Roscosmos, not pictured, and their Expedition 46 crew mate Sergey Volkov of Roscosmos, center, performs the traditional bread and salt tasting during the crew return ceremony Friday, March 25, 2016, at the Gagarin Cosmonaut Training Center in Star City, Russia. Kelly and Kornienko completed a record 340 days aboard the International Space Station on March 2, 2016 (Kazakhstan time), to collect valuable data about how the human body adjusts to weightlessness and long-duration spaceflight which will inform future human missions on the journey to Mars. Volkov spent six months on the station.