News & AnalysisAstronomy

Almost-Earth Tantalizes Astronomers With Promise of Worlds to Come

Science  18 Apr 2014:
Vol. 344, Issue 6181, pp. 249
DOI: 10.1126/science.344.6181.249

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Astronomers have discovered an Earth-sized planet in the habitable zone of a red dwarf—a star cooler than the sun—500 light-years away. Because such stars make up three-quarters of all stars in the Milky Way, the finding could open a wide new hunting ground for extraterrestrial life.