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KENNEDY SPACE CENTER, FLA. - On Launch Pad 17-B at Cape Canaveral Air Force Station in Florida, the second stage segment of the Delta II rocket is lowered from the mobile service tower. At the Boeing plant in Alabama, a leak was observed in the second-stage oxidizer tank for another Delta II that had been scheduled to launch in November; therefore, all identical tanks scheduled for launch in the near future are being checked. The second stage for the Delta II that will launch STEREO cannot be effectively tested while atop the first stage at Pad 17-B. STEREO stands for Solar Terrestrial Rela…