The Clovis Airburst: Shocked Quartz Confirms an Ice Age Impact
The wind howled across the North American steppe 12,800 years ago, chilling the bones of the great beasts that roamed the grasslands. For the Clovis people, masters of the stone spear and the first great culture of the continent, the world was a place of abundance. Mammoths, mastodons, and camels th ...