At the Korolev Museum in the Baikonur Cosmodrome in Kazakhstan, Expedition 30 Flight Engineer Don Pettit of NASA signs a picture of a Soyuz rocket December 16, 2011 as he and his Expedition 30 crewmates enter the final days of preparations for launch December 21 on their Soyuz TMA-03M spacecraft. Pettit, Soyuz Commander Oleg Kononenko and Flight Engineer Andre Kuipers of the European Space Agency will spend five and a half months on the station. Credit: NASA