SPACE SHUTTLE DISCOVERY MISSION STS-116

European Space Agency (ESA) astronaut Christer Fuglesang, STS-116 mission specialist, moves into the outer section of the Quest Airlock of the International Space Station as he prepares for the mission's fourth session of extravehicular activity (EVA) while Space Shuttle Discovery was docked with the station on December 18, 2006. Astronaut William A. (Bill) Oefelein, pilot, assisted Fuglesang. (UPI Photo/NASA).