When volcanic eruptions make headlines, the images often depict fiery lava and towering ash clouds. But beneath Antarctica’s ...

Oregon's state rock is celebrating its 60th anniversary this year. Here's everything to know about the thunderegg and where ...

Sheer drama. That’s what the Great Sand Dunes are. Starkly beautiful desert dunes set against a backdrop of pretty, ...

Since the early past Tuesday morning, the Poás Volcano crater has been experiencing explosions every two minutes, accompanied ...

A fascinating discovery off the coast of Lanzarote, one of the Canary Islands, has unveiled a submerged mountain that may be ...

A strange rock covered in tiny spheres may hold secrets to Mars’ watery — or fiery — past.

The Opportunity Rover spotted ‘Martian Blueberries’ near the equator in 2004, which were identified as small and marble-like ...

For decades, the prevailing theory behind the mass extinction that ended the reign of the dinosaurs has pointed to a ...

Yellowstone is famous for its volcanic landscapes, erupting geysers and colorful hot springs. The park is also unique because ...

The Devil’s Kettle is a waterfall where the Brule River splits in two, with one half flowing normally while the other half ...

Yellowstone National Park is famous for its volcanic landscapes, erupting geysers, colorful hot springs, and abundant and diverse wildlife. The park is also unique because of the many waterfalls along ...

They look like a dish of lentils, or a mass of spider eggs on a leaf. But whatever they are, these tiny little brown blobs, ...