Chris Cassidy and his backup NASA's Michael Hopkins tour the Gagarin Museum during a traditional tour.

At the Gagarin Cosmonaut Training Center in Star City, Russia, Expedition 35-36 Flight Engineer Chris Cassidy of NASA (right), and his backup, NASA’s Michael Hopkins tour the Gagarin Museum during a traditional tour March 7. Cassidy, Soyuz Commander Pavel Vinogradov and Flight Engineer Alexander Misurkin will launch to the International Space Station March 29, Kazakh time, on their Soyuz TMA-08M spacecraft from the Baikonur Cosmodrome in Kazakhstan.
NASA / Stephanie Stoll