https://www.vice.com/en_us/article/epznep/astronomers-discover-beating-heart-radio-bursts-from-space

A consortium of scientists from MIT and other institutions announced this week that they’ve detected a new radio signal from a galaxy far away—and it’s beaming out into space, from several billion light years away, with a strikingly regular beat.

Fast radio bursts, or FRBs, are energetic flashes of radio light that come from deep space, and have remained a mystery to astronomers for years. Sometimes they’re random, and other times they’re more consistent, detected in waves every few days or weeks. Most last for a few milliseconds.