The launch gantry, surrounding the United Launch Alliance Delta II rocket with the Orbiting Carbon Observatory-2 (OCO-2) satellite onboard, is seen at Space Launch Complex 2, Sunday, June 29, 2014, Vandenberg Air Force Base, Calif.

The launch gantry, surrounding the United Launch Alliance Delta II rocket with the Orbiting Carbon Observatory-2 (OCO-2) satellite onboard, is seen at Space Launch Complex 2, Sunday, June 29, 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. OCO-2 is set for a July 1, 2014 launch.

OCO-2 is managed by JPL for NASA's Science Mission Directorate, Washington. Orbital Sciences Corporation, Dulles, Va., built the spacecraft and provides mission operations under JPL's leadership. The California Institute of Technology in Pasadena manages JPL for NASA.

For more information on OCO-2, visit: http://oco.jpl.nasa.gov/ and http://www.nasa.gov/oco2.

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