Expedition 31 Soyuz Commander Gennady Padalka, NASA Flight Engineer Joe Acaba and Flight Engineer Sergei Revin conducted Soyuz vehicle final qualification training at the Gagarin Cosmonaut Training Center in Star City, Russia on April 24 in advance of their final approval for launch to the International Space Station. Padalka, Acaba and Revin are scheduled to fly to the launch site at the Baikonur Cosmodrome in Kazakhstan on May 2 to prepare for their May 15 liftoff in the Soyuz TMA-04M spacecraft. Also shown is the Expedition 31 backup crew of Kevin Ford, Evgeny Tarelkin and Oleg Novitskiy, conducting ISS Russian Segment final qualification training also at the Gagarin Cosmonaut Training Center on April 24.