Whitson and Malenchenko in the A/L prior to Expedition 16 / STS-120 EVA 4

ISS016-E-009290 (3 Nov. 2007) --- Astronaut Peggy A. Whitson, Expedition 16 commander, and cosmonaut Yuri I. Malenchenko, flight engineer representing Russia's Federal Space Agency, work in the Quest Airlock of the International Space Station as astronaut Scott Parazynski and Doug Wheelock, STS-120 mission specialists, exit the station for the mission's fourth spacewalk while Space Shuttle Discovery is docked with the station.