Mysterious repeating fast radio burst from space looks strangely familiar, scientists realize

Scientists got a strange sense of déjà vu when they took a close look at a mysterious series of bright flashes in a galaxy just 12 million light-years away.

The flashes, known as a repeating fast radio burst (FRB), appear surprisingly similar to flashes found in the Crab Nebula. The Crab Nebula is a famous remnant from an old stellar explosion, or supernova, that humans observed in 1054 AD, which was recorded by several distinct cultures. The colorful remnants have displayed bright and brilliant flashes that look a lot like the newly found FRBs, which occurred in the galaxy M81, researchers said.