The launch gantry is rolled back to reveal the United Launch Alliance Delta II rocket with the Orbiting Carbon Observatory-2 (OCO-2) satellite onboard, at the Space Launch Complex 2, Monday, June 30, 2014, Vandenberg Air Force Base, Calif. OCO-2 will measure the global distribution of carbon dioxide, the leading human-produced greenhouse gas driving changes in Earth’s climate. Launch of OCO-2 is now scheduled for Wednesday, July 2 at 5:56 a.m. EDT (2:56 a.m. Pacific) at the opening of a 30-second window.
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Image Credit: NASA/Bill Ingalls