Tech: Mammoths pelted with micrometeorites

[dracodraconis]

Mammoth tusks from Russia and Alaska, dating between 30,000 and 34,000 years ago, have been found to contain bullet-like pieces from an ancient meteor shower embedded in the skyward side of their tusks. This seems to suggest that a meteor detonated in the air over that region at that time. The researchers had been looking for evidence of a theoretical air burst over North America 13,000 years ago, but the only evidence they found of meteorite impacts involved bones that were far too old.