Stock Photo - 04/29/2002 __ Space Shuttle Endeavour rests on Launch Pad 39A after rollout from the Vehicle Assembly Building. The Shuttle comprises the orbiter, in front, and the taller orange external tank behind it flanked by twin solid rocket boosters. On either side of Endeavour´s tail and main engines are the tail service masts that support the fluid,, gas and electrical requirements of the orbiter´s liquid oxyen and liquid hydrogen aft T_0 umbilicals. Mission STS_111 is designated UF_2, the 14th assembly flight to the International Space Station. Endeavour´s payload includes the Multi_Purpose Logistics Module Leonardo and Mobile Base System. The mission also will swap resident crews on the Station, carrying the Expedition 5 crew and returning to Earth Expedition 4. Liftoff of Endeavour is scheduled between 4 and 8 p.m. May 30, 2002