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KENNEDY SPACE CENTER, FLA. -- On Launch Pad 39A, Endeavour's payload bay doors are open, revealing the cargo and equipment inside. At the top is the orbiter docking system; below it are the SPACEHAB module, the S5 truss and the external stowage platform 3 holding a control moment gyro at left and other supplies. The payload bay doors were opened to allow for payload closeouts, including camera tests on the shuttle robotic arm and the extension, known as the orbiter boom sensor system. Endeavour is scheduled to launch Aug. 7 on mission STS-118, the 22nd flight to the International Space Station. NASA/Charisse Nahser