News

What did the Yellowstone landscape look like after one of its large caldera-forming eruptions? Clues from crystals suggest it might have resembled...

Hydrothermal explosions, like that which occurred on July 23, 2024, in Biscuit Basin, are not just a hazard that occurs in Yellowstone.

With over 10,000 thermal features, Yellowstone is covered from A to Z. Well, almost…

In July 2024, a hydrothermal explosion at Black Diamond Pool sent muddy water and rocks hundreds of feet into the air. It’s far from the first time a...

How often do hydrothermal explosions occur in Yellowstone National Park? It all depends on the size of the event.

The hydrothermal explosion at Biscuit Basin on July 23, 2024, was a spectacular event and emphatically demonstrates an underappreciated hazard in the...

This spring, geologists discovered a small crater at Norris Geyser Basin that, based on monitoring data, appears to have formed during a minor...

For a couple nights in May an extreme solar storm created a beautiful night sky for many people in areas that normally are too far away to see auroras...

The Yellowstone volcanic system is known for its ash-flow tuffs—thick, compressed ash deposits from caldera-forming eruptions. But thinner ash beds...

Rhyolite is the most abundant rock in Yellowstone, and it contains about 75% silica. When it reacts with hot groundwater, much of the silica ends up...