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The Rotating Service Structure at Launch Pad 39A rolls back, revealing the Space Shuttle Discovery on the Mobile Launcher Platform. Discovery is being readied for the STS-92 mission launch to the International Space Station (ISS). The mission payload includes Integrated Truss Structure Z-1, an early exterior framework to allow the first U.S. solar arrays on a future flight to be temporarily installed on Unity for early power; Ku-band communication to support early science capability and U.S. television; and the third Pressurized Mating Adapter to provide a Shuttle docking port for solar array installation on the sixth ISS flight and Lab installation on the seventh ISS flight. The 11-day mission will include four spacewalks. Liftoff is scheduled for Oct. 6 at 9:16 p.m. EDT.