This is the story of a comet impact on the Laurentide Ice Sheet 12,900 years ago that triggered the Younger Dryas Cooling Event.

The rings of the Aïr Mountains in Niger could be the result of impacts by fragments of a comet that disintegrated entering the Earth's atmosphere and triggered the Cryogenian Period known as Snowball Earth.

This presentation discusses various physical models that have been proposed to explain the formation of the Carolina Bays.

This starship adventure explores the characteristics of the Carolina Bays and examines the theories of their formation.

Some scientists attribute the formation of the Carolina Bays to wind and water mechanisms, but there is no evidence that wind can create elliptical structures like the bays.

Description of the Carolina Bays in the gravels near Midlothian, VA and the possible role of acoustic fluidization in their formation.

This presentation examines the geological characteristics of the Nebraska Rainwater Basins and discusses the common geometry with the Carolina Bays.

Meteor Crater, also known as Barringer Crater, is a meteorite impact crater located near Flagstaff, Arizona. It is the most thoroughly investigated and one of the least eroded impact craters in the world.

This presentation describes the scientific method and examines the reasons why controversies arise about scientific hypotheses.

This presentation compares the stress on society of the COVID-19 corona virus to the cataclysm of a comet impact at the onset of the Younger Dryas cooling event 12,900 years ago.