Forgotten for almost 800 years, this narrative by a group of British monks captured the fancy of a geologist named Jack B. Hartung in 1976. He suspected that this report could be an accurate observation of a comet or an asteroid hitting the moon.2 The chronicle describes an extraordinary event—the upper part of the crescent splitting in two as debris from the crash blasts a dark cloud hundreds of miles across the moon and finally a pall of dust giving the moon a shortlived atmosphere and preventing its light from reaching us— blackening it in a sense.
KeywordsDust Mercury Radar Hexagonal Radioactive Element
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