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  A team of astronomers spotted an extreme outburst, or flare, from the Sun’s nearest neighbor–the star Proxima Centauri, a “red dwarf” with about one-eighth the mass of our Sun., Proxima Centauri sits just four light-years, or almost 25 trillion miles, from the center of our Solar System and hosts at least two planets, one of which may look something like Earth. Red dwarfs, also known as M-dwarfs,  are a class of stars that contain the least massive and coolest main-sequence stars in the Milky Way.  They are also hosts to many of the thousands of known exoplanets. The most massive red dwarf stars have lifetimes of tens of billions of years, while the smallest have lifetimes of trillions of years. By comparison, the universe is only 13.8 billion years old. These dim red dwarfs will be the last stars shining in the universe. Astrobiologists are intrigued by the possibility of an ancient technological civilization billions of years old on red-dwarf planets. But there’s a

Milky wayMagallanesy antáica chilenaCarnegie las campanasAlycia weinbergerJackie fahertyMereditha macgregorProxima centauriCarnegie institution for scienceCarnegie institute of scienceCarnegie institution for science jackieExoplanet survey satelliteSolar systemCarnegie instituteNine observatoriesPont telescopeLas campanas observatory