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The Space Shuttle Endeavour's payload bay doors were successfully cycled and closed for flight on Jan. 19 following replacement of a seal on the left door. Endeavour will be carrying the SPACEHAB module in the payload bay of the orbiter. The double module configuration will house experiments to be performed by Endeavour's crew along with logistics equipment to be transferred to the Russian Space Station Mir, where Mission Specialist Andrew Thomas, Ph.D., will succeed David Wolf, M.D. STS-89 will be the eighth docking of the Space Shuttle with Mir. Launch is scheduled for January 22 at 9:48 p.m. EST.