Serena Aunon-Chancellor of NASA waits to board a Soyuz simulator during the final day of crew qualification exams.

AirshowAt the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 56 crewmember Serena Aunon-Chancellor of NASA waits to board a Soyuz simulator May 11 during the final day of crew qualification exams. Aunon-Chancellor, Sergey Prokopyev of Roscosmos and Alexander Gerst of the European Space Agency will launch June 6 on the Soyuz MS-09 spacecraft from the Baikonur Cosmodrome in Kazakhstan for a six-month mission on the International Space Station...NASA/Elizabeth Weissinger.