Scientists paint best portrait of closest known fast radio burst

Scientists have uncovered more details about perhaps the most famous replay fast radio burst, a mysterious phenomenon that astronomers cannot yet explain.

Astronomers first saw this fast radio burst, known as FRB20180916B, in 2018, just over a decade after FRBs were first discovered. Although some FRBs are single flashes at night, some cycle rhythmically and again; this particular FRB falls into the latter category, exploding for four days and then silent for 12. It is also the closest FRB scientists have seen so far, “only” 500 million light-years away.

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