Apr 22 2025SCIENCE
Earth's Big Freeze: How It Ended and What It Means for Life
The Earth has had some seriously cold periods. Two major ice ages happened during the Neoproterozoic Era. These were the Sturtian and Marinoan ice ages. During these times, the planet was covered in ice from pole to pole. This is known as a "snowball Earth. " The ice ages lasted for millions of year
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