STS113-340-015 (28 November 2002) --- Astronaut Michael E. Lopez-Alegria, STS-113 mission specialist, is photographed in the midst of a pre-breathe exercise in preparation for the mission’s second session of extravehicular activity (EVA) in the Quest Airlock on the International Space Station (ISS). Astronaut Donald R. Pettit, Expedition Six NASA ISS science officer, assisted Lopez-Alegria.