Posted Tuesday, June 12, 2012, at 2:13 PM
Photo by Ethan Miller/Getty Images
Were mammoths done in by a fragmented alien comet 13,000 years ago?
Probably, says a team of researchers studying melt-glass material from sedimentary rock in Pennsylvania, South Carolina, and Syria. Scientists report the material discovered—formed at temperatures as high as 3,600 degrees Fahrenheit—isn’t cosmic, volcanic, or man-made, and is consistent with similar stuff found in places like Arizona’s Meteor Crater.
These siliceous scoria-like objects, or SLOs, likely struck the Earth at several epicenters 13,000 years ago, as part of a swarm of meteorite or comet fragments. And that impact may have begun what is known as the Younger Dryas—an unusual cold climactic period that coincided with the massive extinction of everything from mammoths and giant ground sloths to fauna that covered the planet at the time. See? You don’t have to go to Prometheus—we’ve already got a real story about extra-terrestrials destroying life on Earth as we know it.
Video by Jim Festante.