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The sign on the fence at Launch Pad 39A announces the mission of STS-88 and Space Shuttle Endeavour, poised on the pad for launch. Lift-off is targeted for 3:56 a.m. on Dec. 3. The first U.S. launch for the International Space Station, STS-88 is expected to last 11 days, 19 hours and 49 minutes, and land at 10:17 p.m. EST on Dec. 14. Endeavour carries the Unity connecting module which the crew will be mating with the Russian-built Zarya control module already in orbit. In addition to Unity, two small replacement electronics boxes are on board for possible repairs to Zarya batteries.