ISS033-E-018400 (1 Nov. 2012) --- NASA astronaut Sunita Williams, Expedition 33 commander, is pictured in the Quest airlock of the International Space Station as she prepares for the start of a session of extravehicular activity (EVA) outside the International Space Station on Nov. 1, 2012. Williams is wearing an Extravehicular Mobility Unit (EMU) spacesuit.