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Kennedy Space Center, Fla. — Framed by the trees across the water, Space Shuttle Endeavour clears the lightning mast on Launch Pad 39A as it roars into the sky on mission STS-118. Liftoff of Endeavour was on time at 6:36 p.m. EDT. The mission is the 22nd shuttle flight to the International Space Station. It will continue space station construction by delivering a third starboard truss segment, S5, and other payloads such as the SPACEHAB module and the external stowage platform 3.