A 20 to 30 Mile Comet Fragmenting Could Generate a Million Catastrophic Impact Events

The Energy Paradox. Where Did the Heat Come From to Melt the Ice Age in 3000 Years?

Two Miles Below the Atlantic Surface There Are Cliffs, Shorelines and Boulder Deposits

The Bronze Age Collapse May Have Had a Cosmic Trigger

8 to 10 Degrees of Warming in Less Than Five Years. The Geological Record Has Done This Before

When the Medieval Warm Period Ended, Sea Ice Sealed Off Greenland and Nearly Wiped Out Iceland

Scale Invariance and Why the Ancient Mind Mapped the Small Onto the Large

The Energy Paradox Was First Identified in 1973. It Has Never Been Resolved.

Tunguska to Meteor Crater. Two Endpoints. One Very Dangerous Continuum.