Halley’s Comet Has the Wrong Name, New Research Suggests

Evidence from medieval chronicles suggests that the periodic nature of Halley’s Comet was recognized centuries earlier than previously believed.
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Research Suggests That An 11th-Century Monk Discovered Halley’s Comet 600 Years Before Astronomer Edmond Halley

However, new research has revealed that an 11th-century English monk named Eilmer of Malmesbury actually recognized the comet’s periodicity centuries before Halley. Around 1066, Eilmer linked two ...