Exploring abrupt climate change and pandemic induced by comets and asteroids during human history

October 18, 2021

American cosmic airburst in late Roman times revealed by University of Cincinnati
Meteorites, silicious vesicular melt glass, Fe and Si-rich magnetic spherules, positive Ir and Pt anomalies, and burned charcoal-rich Hopewell habitation surfaces demonstrate that a cosmic airburst event occurred over the Ohio River valley during the late Holocene. A comet-shaped earthwork was constructed near the airburst epicenter. Twenty-nine radiocarbon ages demonstrate that the event occurred…
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