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CAPE CANAVERAL, Fla. -- A diver from Liberty Star, one of NASA's solid rocket booster retrieval ships, helps retrieve a spent shuttle booster in the Atlantic Ocean off the coast of Florida. The booster, which was used during space shuttle Discovery's STS-133 launch from NASA Kennedy Space Center's Launch Pad 39A on Feb. 24, will be transported to Hangar AF at Cape Canaveral Air Force Station. The shuttle’s two solid rocket booster casings and associated flight hardware are recovered after every launch by Liberty Star and Freedom Star. The boosters impact the Atlantic about seven minutes after liftoff and the retrieval ships are stationed about 10 miles from the impact area at the time of splashdown. After the spent segments are processed, they will be transported to Utah, where they will be refurbished and stored, if needed. Photo credit: NASA/Frank Michaux