Astronauts Piers J. Sellers (right) and Michael E. Fossum, both STS-121 mission specialists, attired in their Extravehicular Mobility Unit (EMU) spacesuits, along with cosmonaut Pavel V. Vinogradov (center left), Expedition 13 commander representing Russia's Federal Space Agency; astronauts Mark E. Kelly and Stephanie D. Wilson, STS-121 pilot and mission specialist, respectively, pause for a moment for a photo as they prepare for the start of the mission's second scheduled session of extravehicular activity (EVA) in the Quest Airlock of the International Space Station.
NASA
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