Stock Photo - At the Gagarin Museum at the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 3536 Flight Engineer Alexander Misurkin (foreground, left) signs a ceremonial book March 7 as his crewmates, Soyuz Commander Pavel Vinogradov (foreground, center) and Flight Engineer Chris Cassidy of NASA (foreground, right) enjoy the moment. Joining them for the traditional pre-launch activities were backup crew members Sergey Ryazanskiy (back row, left), Oleg Kotov (back row, center) and NASA's Michael Hopkins (back row, right). Cassidy, Vinogradov and Misurkin will launch to the International Space Station March 29, Kazakh time, in their Soyuz TMA-08M spacecraft from the Baikonur Cosmodrome in Kazakhstan.