AirshowExpedition 56 backup crewmember Anne McClain of NASA poses for pictures in the Kremlin gardens in Moscow May 14.

AirshowExpedition 56 backup crewmember Anne McClain of NASA poses for pictures in the Kremlin gardens in Moscow May 14 as part of traditional pre-launch activities. McClain is serving as a backup to the prime crew, Serena Aunon-Chancellor of NASA, Sergey Prokopyev of Roscosmos and Alexander Gerst of the European Space Agency, who will launch June 6 from the Baikonur Cosmodrome in Kazakhstan on the Soyuz MS-09 spacecraft for a six month mission on the International Space Station...NASA/Elizabeth Weissinger.