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KENNEDY SPACE CENTER, FLA. - Inside the Vehicle Assembly Building, a technician (left, center) watches the progress of the External Tank as it is lowered between the Solid Rocket Boosters (SRBs) on the Mobile Launcher Platform. The ET, designated for the Return to Flight mission STS-114, will be mated to the SRBs for launch. The 154-foot long ET is recently redesigned to meet recommendations of the Columbia Accident Investigation Board before returning to flight. Among dozens of changes is a redesigned forward bipod fitting to reduce the risk to the Space Shuttle from falling debris during ascent. Considered a test flight, STS-114 is scheduled to launch during a window extending May 15 to June 3. The Shuttle will carry supplies and equipment to the International Space Station.