The source of the signal lies in a distant galaxy located several billion light-years from Earth. Labeled by astronomers as FRB 20191221A, the signal is currently the longest-lasting FRB, with the clearest periodic pattern, ever detected to date. Within this window, the team of researchers detected bursts of radio waves that repeat every 0.2 seconds in a clear periodic pattern, similar to a beating heart. However, this new signal is quite unique in that it persists for up to three seconds, about 1,000 times longer than the average FRB. The signal has been classified as a fast radio burst, or FRB - an intensely strong burst of radio waves of unknown astrophysical origin, that typically lasts for a few milliseconds at most. Credit: Photo courtesy of CHIME, with background edited by MIT NewsĪ distant neutron star could be the origin of t he clear and periodic pattern of fast radio bursts.Ī strange and persistent radio signal from a far-off galaxy that appears to be flashing with surprising regularity has been detected by astronomers at MIT and elsewhere. Pictured is the large radio telescope CHIME that picked up the FRB. Named FRB 20191221A, this fast radio burst, or FRB, is currently the longest-lasting FRB, with the clearest periodic pattern, detected to date. Astronomers detected a persistent radio signal from a far-off galaxy that appears to flash with surprising regularity.
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