The unsettling 13-foot gap is located at Norris Geyser Basin - one of the hottest, oldest and most dynamic of Yellowstone's ...

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 ...

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

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.

A man visiting Yellowstone National Park was seen sipping water from a thermal pool in a newly released video. Captured by Ian Luedke and posted on the Tourons of Yellowstone Instagram page, the video ...

As if Yellowstone National Park wasn't already a major tourist attraction, officials say that a new blue pool has been ...