The blue water spring is about 13 feet in diameter and 1 foot below the rim, USGS said. The water in the pool was measured at ...

There’s a new milky blue pool in Yellowstone National Park.

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

Last April, geologists conducting routine maintenance at temperature logging stations in Yellowstone National Park’s Norris ...

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

A mysterious blue water-filled hole appeared in Yellowstone's Norris Basin, caused by small explosions, but poses no ...

Jimmy Kimmel gave a salute to “The Late Show With Stephen Colbert” — and blasted rival network CBS — on Thursday evening, ...

Learn about the new hydrothermal feature that appeared last winter in Yellowstone National Park, possibly on Christmas Day.

In Yellowstone National Park, a hydrothermal explosion has formed a new hole, filled with chalk blue water that’s hotter than a warm bath. A team of USGS geologists discovered the new pool in April ...

Yellowstone National Park is home to a huge and varied range of animal life but in recent days, many creatures appear to be ...

"The discovery emphasizes the dynamic nature of Yellowstone's thermal activity," Yellowstone Volcano Observatory's Mike ...

On Monday afternoon, the U.S. Geological Survey announced the discovery of a new geothermal pool in Yellowstone National Park ...