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Astronomers detect a radio 'heartbeat' billions of light-years from Earth Posted: 13 Jul 2022 08:46 AM PDT Astronomers detected a persistent radio signal from a far-off galaxy that appears to flash with surprising regularity. Named FRB 20191221A, this fast radio burst, or FRB, is currently the longest-lasting FRB, with the clearest periodic pattern, detected to date. |
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