Is there any other planet same like the earth in any other solar system?

Astronomers have discovered the first Earth-size planet orbiting a star in the “habitable zone” — the range of distance from a star where liquid water might pool on the surface of an orbiting planet. The discovery of Kepler-186f confirms that planets the size of Earth exist in the habitable zone of stars other than our sun. The Earth-like world is about 1.9 times the size of our planet.

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