Earth’s possible twin has been found!945 light years away the extraordinary solar system that holds two Kepler-20 are almost identical to Earth. Kepler-20f could have a thick water-vapor atmosphere,but its surface may be too hot for life.Although in the same solar system there is a Kepler-20e which is only slightly smaller than Earth but may be hotter. Both planets circle their star are close to a year-long orbit.A month earlier they discovered Kepler-22b which you could fit 13 Earths inside!

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