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

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

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 ...

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

If Earth's history were a calendar year, humans would not appear until the last few minutes before midnight on Dec. 31.

The Lafayette Meteorite, a chunk of Mars, has provided crucial insights into the Red Planet's geological history.

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