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KENNEDY SPACE CENTER, FLA. - Inside the mobile service tower on Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the shrouded fairing sections rest side by side. Both halves will later be installed around the spacecraft for protection during launch. The fairing is a molded structure that fits flush with the outside surface of the Delta II upper stage booster and forms an aerodynamically smooth nose cone, protecting the spacecraft during launch and ascent. STEREO, which stands for Solar Terrestrial Relations Observatory, comprises two spacecraft that will be launched as one. T…