LaCroix and Michels examine the Younger Dryas period, hypothesized by Graham Hancock and Randall Carlson to have included a comet or meteor impact around 12,000 years ago.
LaCroix and Michels examine the Younger Dryas period, hypothesized by Graham Hancock and Randall Carlson to have included a comet or meteor impact around 12,000 years ago.