At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmembers Jack Fischer of NASA (left) and Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, right) enjoy a game of checkers April 13 as part of their pre-launch activities. Yurchikhin and Fischer 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