The British astronomer and mathematician Edmond Halley was not, after all, the first to understand the cycle of the comet that now bears his name. This is shown by research conducted by, among others, Professor Simon Portegies Zwart. It was the monk Eilmer of Malmesbury who, as early as the 11th century, linked two observations of the comet.
Friday 13 February 2026
Leiden - 21 days ago
Halley’s Comet wrongly named: 11th-century English monk predates British astronomer
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