New evidence found in the Rocky Mountains of Colorado supports the notion that Snowball Earth was indeed a global phenomenon.

Around 700 million years ago, the Earth cooled so much that scientists believe massive ice sheets encased the entire planet ...

Earth's tectonic history is what it is because of our planet's material composition. It's not like this on all planets, nor even all the rocky planets in our own solar system. However, the garnet ...

Imagine a world where continents are fused into one massive landmass, and life as we know it is on the brink of ...

A rare Triassic fossil unearthed in Brazil, Gondwanax paraisensis, could provide new insights into the origins of dinosaurs.

We know from The Lord of the Rings that Tolkien crafted endless stars in his legendarium, but are there other planets too?

Early in Earth’s history, space rocks frequently hit the young planet. It is estimated that “giant impactors,” greater than 6.2 miles (10 kilometers) across, pummeled the planet at least ...

Imagine that a massive ice sheet covered Canada and oozed down over a large part of the northern United States, like icing ...

Here’s how it works. If you were to imagine all of Earth's history as just one day, as in Carl Sagan's cosmic calendar, humans wouldn't arrive until the last few seconds before midnight.