Discovery of second repeating fast radio burst raises new questions


“An international team of astronomers have discovered a second persistently active fast radio burst, posing questions about the nature of the mysterious phenomena. Fast radio bursts (FRBs) are intense, brief flashes of radio-frequency emissions, lasting on the order of milliseconds. The phenomenon was discovered in 2007, by graduate student David Narkevic and his supervisor Duncan Lorimer. The source of these highly energetic events is a mystery, but clues as to their nature are being gradually collected. The new source, Fast radio burst 20190520B, was detected with the Five hundred-meter Aperture Spherical radio Telescope (FAST) in Guizhou, China, on May 20, 2019 and found in data in November that year, a new study reports.” (06/08/22)