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21 December, 2011

Earth Sized Planets found beyond Solar System


Washington, Dec 21 (IANS) NASA’s Kepler mission has discovered the first Earth-sized planets orbiting a sun-like star outside our solar system, the US space agency has announced.
The planets, called Kepler-20e and Kepler-20f, are too close to their star to be in the so-called habitable zone where liquid water could exist on a planet’s surface, but they are the smallest exoplanets ever confirmed around a star like our sun, NASA said Tuesday.

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