Expedition 57 backup crewmember David Saint-Jacques of the Canadian Space Agency poses for pictures as he boards.

At the Baikonur Cosmodrome in Kazakhstan, Expedition 57 backup crewmember David Saint-Jacques of the Canadian Space Agency poses for pictures Oct. 6 as he boards the Soyuz MS-10 spacecraft for a final fit check. Saint-Jacques and Oleg Kononenko of Roscosmos are the backups to the prime crewmembers, Alexey Ovchinin of Roscosmos and Nick Hague of NASA, who will launch Oct. 11 from the Baikonur Cosmodrome on the Soyuz MS-10 spacecraft for a six-month mission on the International Space Station...NASA/Victor Zelentsov.