How Did This 1,300-Ton Boulder Travel Up a Cliff? Scientists Just Figured It Out

A seemingly out-of-place boulder in Tonga hints at a massive tsunami that hit the region 7,000 years ago.

How Did This 1,300-Ton Boulder Travel Up a Cliff? Scientists Just Figured It Out
A seemingly out-of-place boulder in Tonga hints at a massive tsunami that hit the region 7,000 years ago.