Columbus (ISS module)

Columbus is a science laboratory module that forms part of the International Space Station (ISS) and represents the European Space Agency's (ESA) largest single contribution to the station. It was constructed in Turin, Italy, by Alcatel Alenia Space (now Thales Alenia Space) with functional equipment and software designed by EADS (now Airbus Defence and Space) in Bremen, Germany. The module was launched aboard Space Shuttle Atlantis on 7 February 2008, during mission STS-122. Columbus is operated by the Columbus Control Centre at the German Space Operations Center, part of the German Aerospace Center (DLR) in Oberpfaffenhofen near Munich. In 2008, ESA estimated the total cost of Columbus—including construction, ten years of operations, scientific experiments, and supporting ground infrastructure—at approximately €1.4 billion (about US$2 billion).

History

Background

The structure used for Columbus is based on the MPLM module built for NASA by Thales Alenia Space. In 2000 the pre-integrated module (structure including harness and tubing) was delivered to Bremen in Germany by the Co-prime contractor Alenia. The final integration and system testing was performed by the overall prime contractor EADS Astrium Space Transportation, after that the initial Payload was integrated and the overall complement checked-out.

The final schedule was much longer than originally planned due to development problems (several caused by the complex responsibility splitting between the Co-prime and the Overall prime contractor) and design changes introduced by ESA but also due to the Shuttle problems delaying the Columbus launch for several years. The main design change was the addition of the External Payload Facility (EPF), which was driven by the different European Payload organizations being more interested in outer space than internal experiments.