Aboard a Gagarin Cosmonaut Training Center aircraft Expedition 51 crewmembers as they traveled for pre-launch training.

Aboard a Gagarin Cosmonaut Training Center aircraft, Expedition 51 crewmembers Jack Fischer of NASA (left) and Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, right) display their Expedition crew patch on the wall of the cabin April 5 as they traveled to their launch site at the Baikonur Cosmodrome in Kazakhstan for final pre-launch training. 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. Photo: NASA/Victor Zelentsov