Anyone living on Earth between 720 million and 635 million years ago probably would've needed a jacket. Geologists have long suspected that Earth's temperature dropped dramatically during this ...

Earth's now steamy Equator was covered with ice 716 million years ago, according to a new study. The finding appears to add solid evidence to the theory of an ancient "snowball Earth." ...

Even the balmy tropics may have once been crushed by colossal masses of ice. A severe ice age dominated Earth, some 720 to 635 million years ago, well before dinosaurs stalked the land. But it's ...

This is a vicious cycle that on other planets may have left it covered in ice forever. Over time, however, the CO2 levels built up on the Earth from volcanic eruptions and other sources.

Hundreds of millions of years ago, Earth was encased in ice. How did life survive? Seven-hundred-million years ago, ice threatened to make our planet uninhabitable, snuffing out new complex life ...

All of which raises questions about what the snowball Earth might have looked like in the continental interiors. A team of US-based geologists think they've found some glacial deposits in the form ...

As glaciers retreat due to a rise in global temperatures, one study shows that detailed 3D elevation models could drastically ...

Earth NASA satellites show Antarctica has gained ice despite rising global temperatures. How is that possible? The Sun 14,000 years ago, the most powerful solar storm ever recorded hit Earth.

An artist's conception of "Snowball Earth," when the planet was either completely or largely covered in ice hundreds of millions of years ago. Even the balmy tropics may have once been crushed by ...