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July 22, 2013
VANDENBERG AFB, CALIF. - The Aura spacecraft atop its Boeing Delta II launch vehicle sits on NASA’s Space Complex 2 at Vandenberg Air Force Base in California waiting to launch. Liftoff is now scheduled for no earlier than July 14. The latest in the Earth Observing System (EOS) series, Aura’s four state-of-the-art instruments will study the dynamics of chemistry occurring in the atmosphere. The spacecraft will provide data to help scientists better understand the Earth’s ozone, air quality and climate change. [Photo by Bill Ingalls/NASA]