Astronomers have discovered a roughly Earth-size alien world around Proxima Centauri, which lies just 4.2 light-years from our own solar system. What's even more exciting, study team members said, is that the planet, known as Proxima b, circles in the star's "habitable zone.”

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Submitted August 24, 2016 at 10:34PM by budmeup http://ift.tt/2bitYhj