AirshowAt the Gagarin Cosmonaut Training Center in Star City Russia pose for pictures before boarding a bus.

AirshowAt the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 56 crewmembers Serena Aunon-Chancellor of NASA (left), Sergey Prokopyev of Roscosmos (center) and Alexander Gerst of the European Space Agency (right) pose for pictures May 19 before boarding a bus that took them to a nearby airfield for a flight to their launch site at the Baikonur Cosmodrome in Kazakhstan. They will launch June 6 on the Soyuz MS-09 spacecraft from Baikonur for a six-month mission on the International Space Station...NASA/Elizabeth Weissinger.