Summary:
- Astronomers have detected a dead star, known as a pulsar, that is emitting mysterious radio signals like a cosmic beacon.
- The pulsar, named PSR J1913+1102, is located about 21,000 light-years from Earth and is sending out radio waves at a very precise rate, similar to the pulsing of a lighthouse.
- This unusual behavior of the pulsar has puzzled astronomers, and they are investigating further to understand the underlying mechanism behind these mysterious signals.