At the Cosmonaut Hotel crew quarters in Baikonur Kazakhstan pose for pictures as part of traditional pre-launch activities.

At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, the Expedition 51 prime and backup crewmembers pose for pictures April 13 as part of traditional pre-launch activities. From left to right are backup crewmembers Randy Bresnik of NASA and Sergey Ryazanskiy of the Russian Federal Space Agency (Roscosmos) and prime crewmembers Fyodor Yurchikhin of Roscosmos and Jack Fischer of NASA. Fischer and Yurchikhin will liftoff April 20 from the Baikonur Cosmodrome on the Soyuz MS-04 spacecraft for a four and a half month mission on the International Space Station. NASA/Victor Zelentsov