Space ShuttleSpace Shuttle Atlantis lifts off on its first flight in two years, an 11-day mission to conduct studies of Earth’s atmosphere with the ATLAS package mounted in the cargo bay. Aboard Atlantis for her 13th flight are Commander Donald McMonagle, Pilot Curtis Brown, Payload Commander Ellen Ochoa, and mission specialists Scott Parazynski, Joseph Tanner and Jean-Francois Clervoy.