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KENNEDY SPACE CENTER, FLA. -- Members of the STS-112 crew stand inside a slidewire basket, a component of the emergency egress system at the pad. From left are Mission Specialists Sandra Magnus, Fyodor Yurchikhin (with the Russian Space Agency), and Piers Sellers. The training is part of Terminal Countdown Demonstration Test activities, which include a simulated launch countdown. Mission STS-112 aboard Space Shuttle Atlantis is scheduled to launch no earlier than Oct. 2, between 2 and 6 p.m. EDT. STS-112 is the 15th assembly mission to the International Space Station. Atlantis will be car…