BOULDER, Colo. — A massive star exploded around 13,000 years ago, and research now suggests that the cosmic blast may have plummeted Earth into a sudden ice age while wiping out woolly mammoths, giant ...
The 'Big Freeze', or more formally the 'Younger Dryas stadial', is a roughly 1300 year time-span — between 12,800 years ago and 11,500 years ago — when the planet suddenly reverted back to ...
Scientists are uncovering signs that Earth has been hit by powerful cosmic blasts that leave little trace on the surface yet ...
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback