We still have no idea what's behind them.
Up until now, only 29 out of a total of 1,000 FRBs detected to date were found to be repeating, according to"When we carefully count all our fast radio bursts and the sources that repeat we find that only about 2.6 percent of all fast radio bursts that we discover repeat," Pleunis told the publication. "For many of the new sources we have detected only a few bursts, which makes the sources quite inactive. Almost as inactive as the sources that we have only seen once.
"It is possible that all fast radio burst sources eventually repeat, but that many sources are not very active," he added. Many of these repeating patterns are still proving extremely difficult to classify, making them even more elusive. But as astronomers build out a rapidly increasing dataset of these bursts, in addition to some extremely large radio telescopes being built like the Square Kilometer Array Observatory in Australia, we could soon finally get some answers.
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