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http://www.bbc.co.uk/news/science-environment-39521344
Scientists say they have detected an atmosphere around an Earth-like planet for the first time.
They have studied a world known as GJ 1132b, which is 1.4-times the size of our planet and lies 39 light years away.
Their observations suggest that the "super-Earth" is cloaked in a thick layer of gasses that are either water or methane or a mixture of both.
The study is published in the Astronomical Journal.