This week in 2001, space shuttle Endeavour, mission STS-100, landed after a successful 11-day mission to the International Space Station. Endeavour delivered the new Remote Manipulator System, or Canadarm2, to the station. Here, astronauts Scott Parazynski and Chris Hadfield prepare to unpack Canadarm2 during the first of two spacewalks. 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)