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Kepler Discovers First Earth-Size Planet In The Habitable Zone Of Another Star

May 18, 2014

NASA’s Kepler Space Telescope has discovered the first validated Earth-size planet orbiting in the habitable zone of a distant star, an area where liquid water might exist on its surface. The planet, Kepler-186f, is ten percent larger in size than Earth and orbits its parent star, Kepler-186, every 130 days. The star, located about 500 light-years from Earth, is classified as an M1 dwarf and is half the size and mass of our sun.

Credit: NASA Ames Research Center

[ Read the Article: Astronomers Using Kepler Telescope Discover First Earth-Sized Exoplanet Within The Habitable Zone ]



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