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KENNEDY SPACE CENTER, FLA. -- Workers on the deck of the Liberty Star, one of NASA's solid rocket booster retrieval ships, as well as divers in the water, help lower sonar mapping equipment alongside the ship. The equipment will be attached to the ship's hull for an eight-day expedition surveying deep-water coral reefs on the Oculina Banks off eastern Florida. NASA joins the National Oceanic and Atmospheric Administration (NOAA) and other ocean scientists for the sophisticated mapping system that will provide the first high-resolution, three-dimensional map of the Oculina Banks. The survey results are expected to guide another expedition in Spring 2003, using NASA's ship, when the reef fish spawn. Also used will be NASA's underwater robot and an acoustic hydrophone system for listening to fish and vessel noise. Dive sites will be chosen based on the new charts.