Mysterious repeating radio signals have been detected coming from outside our galaxy

Mysterious repeating radio signals have been detected coming from outside our galaxy

Astronomers have detected repeating blasts of radio signals coming from deep space. These short-lived signals are known as ‘fast radio bursts‘ (FRBs), and although we’ve heard them before, they were always thought to be one-off events coming from random locations. But for the first time ever, researchers have now heard repeating signals, all emanating from a single unknown source outside our galaxy.

Ten blasts all coming from the same direction were detected last year in May and June – and when the astronomers looked back at the data, they found that another FRB in 2012 had originated from the same place, suggesting that something is happening there regularly to produce the extremely short and intense signals.

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