Karen Nyberg takes a moment to pay tribute to Russian space icons interred in the Kremlin Wall during a tour of Red Square in Moscow May 8.

Expedition 36/37 Flight Engineer Karen Nyberg of NASA takes a moment to pay tribute to Russian space icons interred in the Kremlin Wall during a tour of Red Square and the Kremlin in Moscow May 8. Nyberg, Soyuz Commander Fyodor Yurchikhin and Flight Engineer Luca Parmitano of the European Space Agency 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