A Russian space agency rescue team carries U.S. astronaut Donald Pettit (center) shortly after the landing of the Russian Soyuz space capsule near Dzhezkazgan, Kazakhstan, on Sunday, July 1, 2012. (AP Photo/Mikhail Metzel, Pool)
A Russian space agency rescue team carries U.S. astronaut Donald Pettit (center) shortly after the landing of the Russian Soyuz space capsule near Dzhezkazgan, Kazakhstan, on Sunday, July 1, 2012. (AP Photo/Mikhail Metzel, Pool)
Dutch astronaut Andre Kuipers (left) and American astronaut Donald Pettit, pictured on Friday, April 20, 2012, will use the International Space Station's robot arm to snare and berth the SpaceX Dragon supply capsule. (AP Photo/NASA and the European Space Agency)
Dutch astronaut Andre Kuipers (left) and American astronaut Donald Pettit, pictured on Friday, April 20, 2012, will use the International Space Station's robot arm to snare and berth the SpaceX Dragon supply capsule. (AP Photo/NASA and the European Space Agency)
In this photo taken with a fisheye lens and with long-time exposure, people watch the launch of the Soyuz-FG rocket booster with the Soyuz TMA-03M space ship carrying a new crew to the International Space Station, at the Russian-leased Baikonur cosmodrome, Kazakhstan, Wednesday, Dec. 21, 2011. The Russian rocket carries U.S. astronaut Donald Pettit, Russian cosmonaut Oleg Kononenko and Netherlands' astronaut Andre Kuipers. (AP Photo/Dmitry Lovetsky)
