(04/29/2002) -- Space Shuttle Endeavour is silhouetted against the morning sun as it arrives on Launch Pad 39A to begin processing operations for launch on mission STS-111. The slow journey along the crawlerway took 6.5 hours at a speed of 0.9 mph. The Shuttle sits atop its Mobile Launcher Platform, which travels on the crawler-transporter. At left is the open Rotating Service Structure and the Fixed Service Structure behind it, with its 80-foot lightning mast on top. 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