KENNEDY SPACE CENTER, FLA. -- Platforms are extended toward Space Shuttle Atlantis from the fixed service structure, at left, as processing begins following the Shuttle's arrival at Launch Pad 39A. Rollout is a milestone for Atlantis' launch to the International Space Station on mission STS-122, targeted for 6 December. On this mission, Atlantis will deliver the European Columbus laboratory to the International Space Station. ESA's largest contribution to the Station, Columbus is a multifunctional, pressurized laboratory that will be permanently attached to U.S. Node 2, called Harmony. The laboratory will expand the research facilities on board the station, providing crew members and scientists from around the world the ability to conduct a variety of experiments in the physical, materials and life sciences.