Space ShuttleSpace Shuttle Endeavour lifts off on a 15-day mission to the International Space Station, carrying more supplies and equipment than any previous shuttle flight bound for the station. Also on tap is a major spacewalk to repair part of the solar panel assembly on the station which allows it to track the sun. Aboard Endeavour for her 22nd flight are Commander Chris Ferguson, Pilot Eric Boe, and mission specialists Steve Bowen, Don Pettit, Shane Kimbrough, Heidemarie Stefanyshyn-Piper and Sandra Magnus. Magnus remains on the International Space Station, while ISS crewmember Greg Chamitoff returns from a six-month stint in space aboard the shuttle.