The first Earth-sized planets have detected, have detected by astronomers which are orbiting a star similar to our own Sun.Dr .Francois Fressin of the Harvard-Smithsonian centre for Astrophysics in Cambridge, US who led the research, said that the discovery was the beginning of a new era of discovery of many more planets similar to our own.
One of the planets, named Kepler 20f, is almost exactly the size of the Earth. Kepler 20e is slightly smaller at 0.87 epochs the radius of Earth and is closer to its star than 20f.Both planets are now thought to be too hot to be capable of supporting life. But according to Dr.Fressin, the planets were once more from their star and fresh sufficient for liquid water to exist on their outside which is a necessary condition for life.
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