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At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 37/38 Soyuz Commander Oleg Kotov (front row, center) signs a certification book in a traditional ceremony Sept. 6 as his prime and backup crewmates look on. In the front row are prime crewmates NASA Flight Engineer Michael Hopkins (left) and Flight Engineer Sergey Ryazanskiy (right). In the back row are backup crew members Steve Swanson of NASA (left), Alexander Skvortsov (center) and Oleg Artemyev (right). Hopkins, Kotov and Ryazanskiy are preparing for their launch to the International Space Station from the Baikonur Cosmodrome in Kazakhstan on Sept. 26, Kazakh time, aboard the Soyuz TMA-10M spacecraft.