Giant glaciers scraped parts of the Earth's crust, releasing key minerals into the ocean millions of years ago, a study ...

Imagine floating in space, gazing on a frozen white orb. The ball hangs in the void, lonely and gleaming in the light from ...

Around 700 million years ago, Earth was a very different planet—gripped by extreme deep freezes during the Cryogenian period.

Earth was a very different place during its Cryogenian period, around 700 million years ago. It was covered head-to-toe in kilometers-deep dice as huge frozen rivers churned across the planet’s rocky ...

Kirkland and researchers the University of Portsmouth in England and St. Francis Xavier University in Canada chemically analyzed crystals in rocks from Earth's Cryogenian period. Earth was so ...