At the Baikonur Cosmodrome in Kazakhstan, Expedition 30 Flight Engineer Don Pettit flashes a smile as he climbs aboard his Soyuz TMA-03M spacecraft Dec. 9, 2011 during a dress rehearsal fit check. Pettit will launch Dec. 21 to the International Space Station with Soyuz Commander Oleg Kononenko and Flight Engineer Andre Kuipers of the European Space Agency.
Credit: NASA