Expedition 51 prime and backup crewmembers Fyodor Yurchikhin, Jack Fischer, Sergey Ryazanskiy and Randy Bresnik.
jsc2017e040288 (April 6, 2017) — In the Integration Building at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, front row, left) and Jack Fischer of NASA (front row, right) pose for pictures April 6 with their backups, Sergey Ryazanskiy of Roscosmos (back row, left) and Randy Bresnik of NASA (back row, right) as part of pre-launch training preparations. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin