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Kepler Discovers its Smallest Habitable Zone Planets

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Possible habitable planet

The artist's concept depicts Kepler-62f, a super-Earth-size planet in the habitable zone of a star smaller and cooler than the sun, located about 1,200 light-years from Earth in the constellation Lyra.

Credit: NASA/Ames/JPL-Caltech

NASA's Kepler mission has discovered two new planetary systems that include three super-Earth-size planets in the "habitable zone," the range of distance from a star where the surface temperature of an orbiting planet might be suitable for liquid water.

From Jet Propulsion Laboratory/NASA
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