KENNEDY SPACE CENTER, FLA. - In the Orbiter Processing Facility, workers help guide the body flap toward the orbiter Atlantis for installation. The body flap is an aluminum structure consisting of ribs, spars, skin panels and a trailing edge assembly. It thermally shields the three Space Shuttle Main Engines during entry and provides the orbiter with pitch control trim during its atmospheric flight after entry. Atlantis is being processed for its mission, designated STS-121, this summer to the International Space Station. The launch planning window is July 12 - August 3.

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