Scientists have uncovered tens of thousands of previously unseen earthquakes beneath Yellowstone, a reminder that one of the ...

This photo shows the exposure of the Mount Jackson Rhyolite Series vitrophyre at Gibbon River. Boulders of weathered, lichen-covered rock show how easy it is to overlook these new units. (Photo by Liv ...

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Liv Wheeler, M.S. student, and Stacy ...

The Grand Prismatic hot spring in Yellowstone National Park is sourced from a magma chamber beneath it. The bright colours are produced by hydrophilic bacteria in the mineral-rich water. Yellowstone, ...

Yellowstone has erupted three times in the past 2.1 million years, and each event buried large portions of North America under ash. The last one happened 640,000 years ago, a fact news outlets love to ...