Nasa announced the discovery of seven Earth-like planets orbiting a star called Trappist-1, about 39 light years away, on Wednesday.
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The find has widely excited the astronomy community because of its implications in the hunt for alien life beyond the solar system. Three of the planets in the Trappist-1 system are in the habitable zone near the star and so could have water on their surfaces.
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Originally posted 2017-02-23 09:20:24. Republished by Blog Post Promoter