The United Launch Alliance Delta II rocket with the Orbiting Carbon Observatory-2 (OCO-2) satellite onboard sits at the launch pad at the Vandenberg Air Force Base, California June 30, 2014. The NASA ... more 
The United Launch Alliance Delta II rocket with the Orbiting Carbon Observatory-2 (OCO-2) satellite onboard sits at the launch pad at the Vandenberg Air Force Base, California June 30, 2014. The NASA satellite which is being prepared for launch early on July 1, 2014, at 2.56 a.m. PDT, is expected to reveal details about where carbon dioxide, a greenhouse gas tied to climate change, is being released into Earth's atmosphere on a global scale. The observatory, or OCO, also will be able to pinpoint where the planet's forests and ocean are reabsorbing atmospheric carbon, a cycle that is key to Earth's temperature. REUTERS/Gene Blevins (UNITED STATES - Tags: SCIENCE TECHNOLOGY) less 
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Reuters | Photo By GENE BLEVINS / REUTERS
Tue, Jul 1, 2014 12:38 AM EDT