Two years after a dramatic explosion in Yellowstone's Biscuit Basin, a new geyser shot up near Black Diamond Pool.

They also suggest that Yellowstone's underground plumbing could be more closely tied to long-term tectonic forces than ...

Yellowstone National Park visitors were startled last month by an unexpectedly fierce hydrothermal explosion – an eruption of underground hot water – that spewed steam, boiling water, mud, and ...

The largest acidic geyser in the world is erupting again at Yellowstone National Park after several years of dormancy, according to the U.S. Geological Survey. Echinus Geyser, a 66-foot geyser pool ...

Around 465 active geysers are roiling across Yellowstone National Park at any given time, with new ones regularly bubbling to ...

(Reuters) - The world's largest active geyser has erupted three times in the past six weeks at Yellowstone National Park, including once this week, in a pattern that is unusual but not at all ...

Scientists have uncovered a new explanation for what powers Yellowstone and other supervolcanoes. Instead of a deep plume rising from near Earth’s core, a broad “mantle wind” may push hot rock beneath ...