JSC2014-E-024972 (6 March 2014) — At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 39/40 backup Flight Engineer Elena Serova of Roscosmos (front, right) signs a commemorative book at the center’s museum March 6 as her backup crewmates, Barry Wilmore of NASA (front, left) and Alexander Samokutyaev of Roscosmos (front, center) look on. Also participating in the back row were prime crew members Steve Swanson of NASA (back, left), Alexander Skvortsov of Roscosmos (back, center) and Oleg Artemyev of Roscosmos (back, right). Swanson, Skvortsov and Artemyev are preparing for their launch to the International Space Station from the Baikonur Cosmodrome in Kazakhstan March 26, Kazakh time, in their Soyuz TMA-12M spacecraft for a six-month mission. Photo credit: NASA