At the Cosmonaut Hotel crew quarters in Baikonur, Kazakhstan, Expedition 51 crewmember Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, right) helps crewmate Jack Fischer of NASA (left) plant a tree in Fischer’s name April 13 as part of traditional pre-launch activities. 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