Expedition 56 prime and backup crew members in front of the Tsar Cannon at the Kremlin

The expedition 56 prime and backup crew members pose for pictures may 14 in front of the tsar cannon at the kremlin in moscow as part of traditional pre-launch activities. From left to right are prime crew members serena auñón-chancellor of nasa, sergey prokopyev of roscosmos and alexander gerst of the european space agency and backup crewmembers anne mcclain of nasa, oleg kononenko of roscosmos and david saint-jacques of the canadian space agency. Auñón-chancellor, prokopyev and gerst 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.