Transcription: Pulsars are rotating neutron stars emitting pulsing radio waves into space. Pulsars have a diameter of approximately 10 km and consist mainly of neutrons. They spin rapidly while emitting two intense beams of radio waves in a regular sequence. These emissions are observed as short pulsed radio signals. The phenomenon is most likely related to extremely strong magnets magnetic fields. A short beam of radio waves is observed at each rotation of the pulsar, very similar to light beams from a lighthouse.