Did a medieval flying monk spot Halley's comet, twice? It's complicated

A University of Leicester historian suggests that Eilmer of Malmesbury, a medieval monk, may have spotted Halley's comet in 1018 and again in 1066. This theory is based on historical records and observations of the comet's appearances. If true, it would be an early recorded sighting of the comet. The significance of this discovery is unclear, but it highlights the importance of historical research and observation. No immediate action is required for IT professionals.