Expedition 39/40 Soyuz Commander Alexander Skvortsov center signs a commemorative book at the center's museum.

At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 39/40 Soyuz Commander Alexander Skvortsov (front, center) signs a commemorative book at the center’s museum March 6 as his crewmates, Steve Swanson of NASA (front, left) and Oleg Artemyev of Roscosmos (front, right) look on. Also participating in the back row were backup crewmembers Barry Wilmore of NASA (back, left), Alexander Samokutyaev of Roscosmos (back, center) and Elena Serova 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.

NASA/Stephanie Stoll