Archaeologists working in Turkey have uncovered a sister site to the ancient ceremonial complex at Göbekli Tepe—a somewhat smaller group of otherwise similar structures that may be even older than its more famous counterpart. And the two ancient sites are not alone: researchers have identified no less than 12 sites
Two new studies have added new evidence to the theory that a major airburst from a meteor or comet occurred over North America, ushering in a 1,400-year cooling period called the Younger Dryas that occurred between the Pleistocene and the Holocene eras. The Younger Dryas saw the extinction of most of the large land mammals across North America, and also the end of the Clovis People, a Paleo-Indian culture. A charred layer of soil, found at roughly 50 Clovis sites across the continent, suggest a massive wildfire that raged continent-wide, possibly caused by such a massive meteor strike.