In late August, the U.S. Geological Survey quietly released a new tool that could reshape how Americans understand the ground beneath their feet. The Cooperative National Geologic Map, now live online ...

Editor’s note: Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Pasadena, California CNN — A raging ...

Doug winds his way through the sculpted red rock formations of Utah and Arizona. In red rock country the Earth’s crust has been pushed up by the collision of two tectonic plates, lifting the land in ...

Researchers have detected a previously unknown layer of partially molten rock beneath Earth's crust. The discovery could help scientists learn more about the movements of Earth's tectonic plates, ...

Big Four Mountain's mystery: 82-degree tilted rock layers defy geology's horizontal rule. There’s a basic rule in geology: Sedimentary rock layers build up horizontally. So how did the slabs of Big ...