Expedition 36/37 prime and backup crewmembers pose for pictures in front of the Tsar Cannon at the Kremlin in Moscow May 8.

Expedition 36/37 prime and backup crewmembers pose for pictures in front of the Tsar Cannon at the Kremlin during a traditional tour of Red Square and the Kremlin in Moscow May 8. From left to right are backup crewmember Koichi Wakata of the Japan Aerospace Exploration Agency, prime Flight Engineer Karen Nyberg of NASA, prime Soyuz Commander Fyodor Yurchikhin, prime Flight Engineer Luca Parmitano of the European Space Agency and backup crewmember Rick Mastracchio of NASA. Parmitano, Nyberg and Yurchikhin are preparing for their launch May 29, Kazakh time, in their Soyuz TMA-09M spacecraft from the Baikonur Cosmodrome in Kazakhstan for a six-month mission on the International Space Station.
NASA/Stephanie Stoll