During suitup, Expedition 4 crew member Carl E. Walz gives a thumbs up for launch. The Expedition 4 crew will be traveling to the International Space Station on mission STS-108 aboard Space Shuttle Endeavour. Top priorities for the 11-day STS-108 (UF-1) mission are the rotation of the Expedition 3 and 4 crews; bringing water, equipment and supplies to the station in the Multi-Purpose Logistics Module Raffaello; and the crew's completion of robotics tasks and a spacewalk to install thermal blankets over two pieces of equipment at the bases of the Space Station's solar wings. Launch is scheduled for 5:45 p.m. EST Dec. 4, 2001, from Launch Pad 39B