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

University of Leicester historian thinks Eilmer of Malmesbury saw two different comets: in 1018 and 1066

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[khoadley]

Before it (possibly) gets nixed by the A/B testing, I have to commend Ars on the headline "Did a medieval flying monk spot Halley’s comet, twice?" - where else on the Internet can you trust such a headline to be justified with an interesting article behind it, rather than just being clickbait ?