Summary:
- Astronomers have detected a fast radio burst (FRB) originating from a dead galaxy, which is an unexpected and puzzling discovery.
- FRBs are powerful, millisecond-long bursts of radio waves that come from beyond our Milky Way galaxy, and their source has been a mystery.
- The detection of this FRB from a dead galaxy challenges current theories about the origins of these bursts, as they were previously thought to come from active, star-forming galaxies.