updated 2/21/2011 4:35:37 PM ET 2011-02-21T21:35:37

NASA is ready to launch its newest Earth-observing satellite.

The satellite dubbed Glory is scheduled to blast off early Wednesday from Vandenberg Air Force Base on the central California coast. Once in orbit, it will join a constellation of satellites already collecting climate data.

Glory will study tiny airborne particles and their influence on climate change.

The $424 million mission was supposed to fly last year, but a problem with the satellite's solar arrays delayed the launch.

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