A landmark discovery just changed how we think about space travel to other worlds
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The European Southern Observatory just announced the most exciting exoplanet discovery to date: An Earth-sized planet located just 4.25 light-years away in orbit around the star Proxima Centauri. The planet is called "Proxima b" and it will undoubtedly be a leading target for scientists as they hope to discover signatures of life beyond our Solar System.
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