STS-131 EVA 2 EMU Prep

S131-E-008648 (11 April 2010) --- NASA astronauts Clayton Anderson (left) and Rick Mastracchio, both STS-131 mission specialists, attired in their Extravehicular Mobility Unit (EMU) spacesuits; along with astronaut James P. Dutton Jr., pilot, are pictured in the Quest airlock of the International Space Station prior to the start of the mission's second spacewalk.