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The system, which right now is designated Kepler-47, is located about 4, 900 light years from Earth.
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This past December, for example, NASA's Kepler space telescope confirmed its first planet in the habitable zone, a "super Earth" known as Kepler-22b that's thought to be 2.4 times as wide as our planet.
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The first, called Kepler-34b, orbits its two small stars in a system about 4, 900 light-years from Earth.
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