Around 700 million years ago, Earth experienced a climate catastrophe so severe that ice sheets covered the planet from pole ...

resulting in a frigid "Snowball Earth." But they've argued quite a bit about just how icy the planet got — specifically, whether thick glacial ice covered the entire globe, all the way down to ...

Learn about the rapid melting of the last Ice Age and how it led to the era of the 'plumeworld ocean' on Earth.

(THE CONVERSATION) Around 700 million years ago, the Earth cooled so much that scientists believe massive ice sheets encased the entire planet like a giant snowball. This global deep freeze, known as ...

The Garvellach islands off the west coast of Scotland are the best record of Earth entering its biggest ever ice age around 720 million years ago, researchers have discovered. The big freeze ...

A recent study by Colorado geologists adds weight to the snowball Earth hypothesis, providing what may be the best evidence ...

That iron ball — Earth's inner core — may have recently stopped rotating, then reversed direction for no apparent reason, a new study found. That may sound apocalyptic, but don't worry.