Lopez-Alegria and Herrington work on P1 truss on the ISS during EVA

ISS005-E-21775 (28 November 2002) --- Astronauts Michael E. Lopez-Alegria (left) and John B. Herrington, STS-113 mission specialists, work on the newly installed Port One (P1) truss on the International Space Station (ISS) during a session of extravehicular activity (EVA). The end effector of the Canadarm2 / Space Station Remote Manipulator System (SSRMS) and Earth’s horizon are visible in right frame.