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VANDENBERG AIR FORCE BASE, Calif. -- Space Launch Complex 576-E, Vandenberg Air Force Base in California, a worker checks the integration of the Taurus XL Stages 1 and 2. The Taurus is the launch vehicle for NASA's Orbiting Carbon Observatory, called OCO, a new Earth-orbiting mission sponsored by NASA's Earth System Science Pathfinder Program. The observatory is targeted to launch Feb. 23 from Space Launch Complex 576-E at Vandenberg. Photo credit: NASA/VAFB
