The Comet's Dilemma: Halley's Name Under Scrutiny Researchers at Leiden University have made a discovery that challenges our understanding of astronomical history.
For over three centuries, Edmond Halley has been credited with identifying the periodic nature of Halley's Comet, which returns to our skies every 76 years.
However, it now appears that a medieval monk, Eilmer of Malmesbury, may have recognized its repeated appearances decades before Halley's time.