Discovered by post-graduate astrophysics student Jocelyn Bell Burnell using the Interplanetary Scintillation Array of Cambridge Observatory on this day in 1967 whilst searching for radio signals in space, because of its precise regularity, it was dismissed by colleagues as terrestrial interference initially,but combing through reams of data, Bell Burnell correctly pinpointed its origins to celestial coordinates of nineteen′ nineteen′′ right ascension, twenty-one° declination, coming from the constellation Vulpecula—for which it was given the designation LGM-1, little green men, supposing it might be an alien beacon of some kind. The discoverer, however, correctly posited that the source was a rapidly rotating neutron star. Fellow researchers received a Nobel prize in 1974 for their work in radioastronomy but Bell Burnell’s contributions were overlooked (for her part, she maintained that she did not believe that the committee should be in the business of honouring research assistants), and the novel class of star is now recognised as a pulsar, emitting beams of radiation from its poles and have proven to be an indispensable lighthouse in the cosmos for detection and triangulation, a throughline for detecting the first exoplanents and the phenomena of gravitational waves among others. In 1979, for their debut studio album, Unknown Pleasures, Joy Division adapted a ridgeline plot of the stars’s radio emissions’ pulses for the cover art.