Mysterious radio burst came from a galaxy 2.5 billion light years away, astronomers discover

For the first time, scientists have nailed down a source of fast radio bursts, one of astronomy’s most enigmatic phenomena. A dim dwarf galaxy 2.5 billion light years from Earth is sending out the mysterious millisecond-long blasts of radio waves, researchers report Wednesday in Nature and Astrophysical Journal Letters. The bursts traverse vast expanses of time and intergalactic space before reaching our planet. “This really is the first ironclad association of a fast radio burst with another astronomical source, so it’s a pretty huge result,” said Duncan Lorimer, an astronomer at West…

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