In the Integration Facility at the Baikonur Cosmodrome in Kazakhstan, Expedition 51 crewmembers Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, left) and Jack Fischer of NASA (right) provide a “thumbs up” as they pose for pictures April 14 in front of their Soyuz booster rocket. 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. Credit: NASA/Gagarin Cosmonaut Training Center/Andrey Shelepin