A photo provided by NASA shows the Soyuz rocket is viewed in the monitor of a video camera moments before Expedition 31 Soyuz Commander Gennady Pedalka, NASA Flight Engineer Joseph Acaba and Flight Engineer Sergei Revin arrive to board the rocket at the Baikonur Cosmodrome in Kazakhstan, Tuesday, May 15, 2012. The Soyuz spacecraft with Padalka, Revin, and Acaba is en route to the International Space Station. (AP Photo/NASA, Bill Ingalls)