jsc2018e048498

At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 56 prime crewmember Alexander Gerst of the European Space Agency (front, right) signs a ceremonial book May 14 as part of pre-launch activities. Joining him in the front row are crewmates Serena Aunon-Chancellor of NASA (front, left) and Sergey Prokopyev of Roscosmos (front, center). Looking on in the back row are backup crewmembers Anne McClain of NASA (left), Oleg Kononenko of Roscosmos (center) and David Saint-Jacques of the Canadian Space Agency. Aunon-Chancellor, Gerst and Prokopyev 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

jsc2018e048498 - At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 56 prime crewmember Alexander Gerst of the European Space Agency (front, right) signs a ceremonial book May 14 as part of pre-launch activities. Joining him in the front row are crewmates Serena Aunon-Chancellor of NASA (front, left) and Sergey Prokopyev of Roscosmos (front, center). Looking on in the back row are backup crewmembers Anne McClain of NASA (left), Oleg Kononenko of Roscosmos (center) and David Saint-Jacques of the Canadian Space Agency. Aunon-Chancellor, Gerst and Prokopyev 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.