Astronomers Have Tracked a Repeating Radio Signal Across Space to an Unexpected Origin
https://www.sciencealert.com/that-newly-discovered-repeating-frb-has-been-tracked-to-a-really-puzzling-origin/amp
The origin of this repeating signal is a spiral galaxy, located 500 million light-years from Earth, making it the closest known source of what we call fast radio bursts (FRBs) yet.