This may be the end of a view of the populating of the Americas. Now, the truth of this event from outer space has to be established and the truth of whether that was an end to the Clovis people now believed to have originated in Europe or whether they merged with the new arrivals from Asia to become Native Americans has to be discovered.
Investigations of a buried layer at sites from California to Belgium reveal materials that include metallic microspherules, carbon spherules, nanodiamonds, fullerenes, charcoal, and soot. The layer's composition may indicate that a massive body, possibly a comet, exploded in the atmosphere over the Laurentide Ice Sheet 12,900 years ago. The timing coincides with a great die-off of mammoths and other North American megafauna and the onset of a period of cooling in Northern Europe and elsewhere known as the Younger Dryas Event. The American Clovis culture appears to have been dramatically effected, even terminated, at this same time. Speakers will discuss numerous lines of evidence contributing to the impact hypothesis. The nature and frequency of this new kind of impact event could have major implications for our understanding of extinctions and climate change. (less)