Airshow At the Gagarin Cosmonaut Training Center in Star City Russia walks to a waiting bus.

Airshow ---- At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 51 crewmember Jack Fischer of NASA (right) walks to a waiting bus April 5 with his crewmate, Fyodor Yurchikhin of the Russian Federal Space Agency (Roscosmos, center) and Yurchikhin’s wife as they prepared to fly to the launch site at the Baikonur Cosmodrome in Kazakhstan for final pre-launch preparations. Fischer and Yurchikhin will launch April 20 on the Soyuz MS-04 spacecraft from Baikonur for a four and a half month mission on the International Space Station. Photo: NASA/Rob Navias