This week in 2007, space shuttle Endeavour, mission STS-118, landed at NASA’s Kennedy Space Center following a successful 14-day mission to the International Space Station. Endeavour carried a payload that included a third starboard truss segment — S5 — a SPACEHAB module, and the external stowage platform 3, which was attached to the P3 truss. Here, astronaut Rick Mastracchio participates in the second session of extravehicular activity to perform construction and maintenance on the orbiting laboratory. The NASA History Program is responsible for generating, disseminating, and preserving NASA’s remarkable history and providing a comprehensive understanding of the institutional, cultural, social, political, economic, technological and scientific aspects of NASA’s activities in aeronautics and space. For more pictures like this one and to connect to NASA’s history, visit the Marshall History Program’s webpage. (NASA)