NASA’s Aura spacecraft, a next-generation Earth-observing satellite that will supply the most complete information to date on the health of the Earth’s atmosphere, is scheduled for launch Saturday, July 10. Liftoff will occur aboard a Boeing Delta II rocket at approximately 6:01:57 a.m. EDT (3:01:57 a.m. PDT) at the opening of a three-minute launch window. Spacecraft separation from the launch vehicle will occur one hour and four minutes later. Launch will be from NASA’s Space Launch Complex 2 at Vandenberg Air Force Base (VAFB), Calif.