
Great balls of fire!
August 13, 2025, Kristine Hartvigsen
Christopher Moore, research professor with the Institute for Archaeology and Anthropology at the University of South Carolina, recently led a team that analyzed sediment from the ocean floor in Baffin Bay, Greenland. Their efforts produced the first evidence — sourced directly from ocean cores — that a comet impact could have triggered an abrupt cooling of the atmosphere during a period known as the Younger Dryas 13,000 years ago.