The crews of Expedition 26 and Expedition 27 are seen on a large screen TV on the far right at the Russian Mission Control Center in Korolev, Russia shortly after Expedition 27's arrival to the International Space Station on Thursday, April 7, 2011. From top left clockwise: Italian Flight Engineer Paolo Nespoli, Expedition 27 Commander Dimitry Kondratiev, NASA Flight Engineer Cady Coleman, NASA Flight Engineer Ron Garan, Soyuz Commander Alexander Samokutyaev and Flight Engineer Andrey Borisenko. Photo Credit: (NASA/Carla Cioffi)

The crews of Expedition 26 and Expedition 27 are seen on a large screen TV at the Russian Mission Control Center in Korolev, Russia shortly after Expedition 27's arrival to the International Space Station on Thursday, April 7, 2011. From top left clockwise: Italian Flight Engineer Paolo Nespoli, Expedition 27 Commander Dimitry Kondratiev, NASA Flight Engineer Cady Coleman, NASA Flight Engineer Ron Garan, Soyuz Commander Alexander Samokutyaev and Flight Engineer Andrey Borisenko. Photo Credit: (NASA/Carla Cioffi)

Expedition 24 prime and back-up crew members pose pose for a group photo after a press conference held at the Cosmonaut Hotel in Baikonur, Kazakhstan, Monday, June 14, 2010. From left: NASA astronaut Doug Wheelock, Russian cosmonaut Fyodor Yurchikhin, NASA astronaut Shannon Walker, NASA astronaut Cady Coleman, Russian cosmonaut Dimitri Kondratiev and European Space Agency Paolo Nespoli of Italy. The launch of the Soyuz spacecraft with Expedition 24 NASA Flight Engineers Shannon Walker and Douglas Wheelock, and Soyuz Commander Fyodor Yurchikhin is scheduled for Wednesday, June 16, 2010 at 3:35 a.m. Kazakhstan time. Photo Credit: (NASA/Carla Cioffi)