WIKIARCHIVES.SPACE

Expedition 50 NASA astronaut Peggy Whitson, seated left, Russian cosmonaut Oleg Novitskiy of Roscosmos, seated center, and ESA astronaut Thomas Pesquet sign a guest book at the "Memorial working study of Yuri Gagarin" at the Gagarin Cosmonaut Training Center (GCTC) as backup crew members: ESA astronaut Paolo Nespoli, standing left, Russian cosmonaut Fyodor Yurchikhin of Roscosmos, standing center, and NASA astronaut Jack Fischer look on, Wednesday, Oct. 26, 2016, at the Gagarin Cosmonaut Training Center (GCTC) in Star City, Russia.