A park scientist noticed it about two weeks after a hydrothermal explosion along a boardwalk during the park’s overactive ...

According to the Yellowstone Volcano Observatory, it’s probable that this new hydrothermal feature is connected to activity ...

Lying five miles beneath the surface of Yellowstone National Park in Wyoming ... have discovered a newly opened volcanic vent in Norris Geyser Basin. The vent is at the foot of a rhyloite ...

Geologically speaking, things are always changing at Yellowstone—especially in the hydrothermal areas. It’s simply the nature ...

A new column of steam rises from Yellowstone. While the expansive volcano shows no hints of an eruption, magma brews beneath the surface, fueling hundreds of geysers and other heated phenomena.

A new volcanic vent was discovered at Yellowstone National Park, the U.S. Geological Survey announced this week.

Yellowstone’s thermal features come and go, but the park’s most famous one, Old Faithful Geyser, is still going strong. “There’s so many thermal features. Not only do they come and go ...

Grand Prismatic Spring in Yellowstone National Park is the largest hot spring in North America and the third-largest in the ...

Geologically speaking, things are always changing at Yellowstone — especially in hydrothermal areas. It’s simply the nature of the complex hydrothermal system overlying one of the planet’s largest ...