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KENNEDY SPACE CENTER, FLA. - The barge carrying the newly redesigned External Tank, designated for use on Return to Flight mission STS-114, passes cruise ships as it enters Port Canaveral, Fla. The barge arrived after an approximately 900-mile journey at sea from the Michoud Assembly Facility in New Orleans. It left the facility Dec. 31 on the Pegasus, NASA’s specially designed barge, towed by Solid Rocket Booster retrieval ship Liberty Star. At Port Canaveral, the barge was then hooked up to the tugs for the last part of the journey to the Launch Complex 39 Area Turn Basin at Kennedy. Next, the External Tank will be off-loaded from the barge and transported to the Vehicle Assembly Building for its final checkout and mating to the twin Solid Rocket Boosters and orbiter Discovery. NASA and Lockheed Martin Corp. spent nearly two years modifying the 15-story, bronze-colored tank to make it safer for liftoff. Among dozens of changes is a redesigned forward bipod fitting -- a design that meets the recommendation of the Columbia Accident Investigation Board to reduce the risk to the Space Shuttle from falling debris during ascent. STS-114 is targeted for a launch opportunity beginning in May. The seven-member Discovery crew will fly to the International Space Station primarily to test and evaluate new procedures for flight safety, including Space Shuttle inspection and repair techniques.