AtlantisSpace Shuttle Atlantis lifts off for its first spaceflight, and the first normal International Space Station construction mission, in four years. A new truss section with more 240-foot solar power panels is added to the station over the course of three spacewalks, each lasting at least six hours. Aboard Atlantis for this flight are Commander Brent Jett, Pilot Christopher Ferguson, and mission specialists Heidemarie Stefanyshyn-Piper, Joe Tanner, Daniel Burbank, and Steven MacLean.