In Pictures: NASA - Kepler's most excellent space discoveries

NASA’s Kepler space telescope continues to amaze

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NASA artist's concept of the circumbinary planet Kepler-16b - the first planet known to definitively orbit two stars. The cold planet, with its gaseous surface, is not thought to be habitable. The largest of the two stars, a K dwarf, is about 69% the mass of our sun, and the smallest, a red dwarf, is about 20%the sun's mass, NASA said. These star pairs are called eclipsing binaries.

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In Pictures: NASA - Kepler's most excellent space discoveries

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