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CAPE CANAVERAL, Fla. - The NASA Railroad draw bridge over the Indian River begins to close for the train carrying the last space shuttle solid rocket booster segments to NASA's Kennedy Space Center. Six cars transported the segments along the Florida East Coast Railway, which began at the ATK solid rocket booster plant in Promontory, Utah. The booster segments will be used for shuttle Atlantis on what currently is planned as the 'launch on need,' or potential rescue mission for the final shuttle flight, Endeavour's STS-134 mission. For information, visit www.nasa.gov_shuttle. Photo credit: NASA_Jim Grossmann