jsc2012e051523

At the historic museum near the launch pad at the Baikonur Cosmodrome in Kazakhstan, Expedition 31/32 Flight Engineer Joe Acaba of NASA signs a mural depicting the likeness of Yuri Gagarin, the first human in space May 11, 2012 as his crewmates, Flight Engineer Sergei Revin (center) and Soyuz Commander Gennady Padalka (right) look on. The trio will launch on their Soyuz TMA-04M spacecraft May 15 from the same launch pad Gagarin left the planet 51 years ago to begin a four-month mission on the International Space Station. NASA/Victor Zelentsov

At the historic museum near the launch pad at the Baikonur Cosmodrome in Kazakhstan, Expedition 31/32 Flight Engineer Joe Acaba of NASA signs a mural depicting the likeness of Yuri Gagarin, the first human in space May 11, 2012 as his crewmates, Flight Engineer Sergei Revin (center) and Soyuz Commander Gennady Padalka (right) look on. The trio will launch on their Soyuz TMA-04M spacecraft May 15 from the same launch pad Gagarin left the planet 51 years ago to begin a four-month mission on the International Space Station. NASA/Victor Zelentsov