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 ...

Yellowstone National Park, renowned for its geothermal features and volcanic history, is beginning to show signs of renewed ...

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

A routine temperature check at the Norris Geyser Basin in Yellowstone National Park led geologists to discover a new blue ...

Recent social media posts claiming animals are fleeing Yellowstone National Park have caused widespread concern for fear of a ...

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

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

In a surprising discovery last April, geologists working at Yellowstone National Park’s Norris Geyser Basin uncovered a ...

A 13-foot-wide hot pool formed over the winter in one of Yellowstone’s most active areas, and it could offer new insights ...

Why are the animals leaving Yellowstone National Park? Videos featuring mountain lions, bears and more go viral after the ...

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

A historically dormant geyser in Yellowstone National Park has been anything but dormant recently -- and visitors can't get enough of the water show. It has also sparked conversation about whether ...