In 1967, a Cambridge student spotted a ‘scruffy’ printout blip that revealed the universe’s mysterious ticking stars

A young scientist discovered a strange signal in 1967. This signal came from a rapidly rotating stellar corpse, a pulsar. Pulsars are collapsed stars that emit powerful energy rays. Their discovery confirmed theories about neutron stars. These cosmic clocks help scientists test physics and study space-time. The discovery changed our understanding of the universe.

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