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The Kepler Mission Begins

Press Release From: NASA HQ
Posted: Friday, March 6, 2009

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The Delta II rocket carrying the Kepler planet-hunting spacecraft lifted off on time at 10:49 p.m. EST from Launch Complex 17-B at Cape Canaveral Air Force Station in Florida. The spectacular nighttime launch followed a smooth countdown free of technical issues or weather concerns.

The Kepler spacecraft will watch a patch of space for 3.5 years or more for signs of Earth-sized planets moving around stars similar to the sun. The patch that Kepler will watch contains about 100,000 stars like the sun. Using special detectors similar to those used in digital cameras, Kepler will look for a slight dimming in the stars as planets pass between the stars and Kepler. The observatory's place in space will allow it to watch the same stars constantly throughout its mission, something observatories such as NASA's Hubble Space Telescope cannot do.

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