USGS geologists discovered something odd in Yellowstone National Park: a massive new hole in the ground that's filled with steaming hot water.

More geological changes are occurring at Yellowstone National Park, as another hole forms in one of the park's basins.The ...

Yellowstone National Park geologists identified a new thermal feature in Norris Geyser Basin. It may have coincided with a ...

The dominant rock type in the Yellowstone region is rhyolite, and that is very rich in silica. As hot water circulates underground, it can dissolve that silica and bring it to the surface, where it is ...

Get ready for a little Christmas in July: There’s a new baby blue pool in Yellowstone National Park, and science suggests it started forming on the winter holiday.

Lava in Hawaii, seismic shaking in Alaska and underwater rumblings near Oregon. Scientists say it’s not the end of the world, but it’s definitely worth watching.

Cutting‑edge dating reveals driftwood high in Grand Canyon caves 55,250 years ago when a meteor’s shock wave blocked and ...

View looking northwest at a new thermal pool in the Porcelain Basin area of Norris Geyser Basin, Yellowstone National Park, that probably formed in a series of mildly explosive events between late ...

Heading to the Pacific Northwest, Skagit Valley in Washington state nabbed second spot. With low air pollution and over 6,000 ...

The Pacific Northwest is facing high wildfire danger this summer, and in response, every national park in the region has now ...

If you’re looking to avoid the crowds, you might want to consider visiting one of the thousands of state parks across the ...

In the natural world, scientists are constantly searching for words and phrases to describe different phenomena. As a result, ...