JSC2007-E-015405 (March 2007) --- Attired in their Russian Sokol launch and entry suits, NASA astronaut Sunita Williams, Expedition 15 flight engineer; along with Russian cosmonauts Oleg Kotov (center), flight engineer; and Fyodor Yurchikhin, commander, pose for a photo in a Soyuz mock-up during training in Star City, Russia at the Gagarin Cosmonaut Training Center (GCTC).