Wheelock, Nespoli, Parazynski and Whitson in the A/L prior to EVA 1

ISS016-E-006733 (26 Oct. 2007) --- Attired in their Extravehicular Mobility Unit (EMU) spacesuits, astronauts Doug Wheelock (left) and Scott Parazynski, STS-120 mission specialists, prepare for the mission's first session of extravehicular activity (EVA) in the Quest Airlock of the International Space Station while Space Shuttle Discovery is docked with the station. European Space Agency (ESA) astronaut Paolo Nespoli, mission specialist, assisted Wheelock and Parazynski. Astronaut Peggy A. Whitson (partially out of frame), Expedition 16 commander, is visible at right.