Astronauts Kenneth D. Bowersox (left) and Donald R. Pettit, Expedition Six mission commander and NASA ISS science officer, respectively, are pictured in the Quest Airlock on the International Space Station (ISS). Bowersox and Pettit are wearing their Extravehicular Mobility Unit (EMU) spacesuits as they prepare for the mission's only scheduled session of extravehicular activity (EVA) on January 15, 2003.