Caldera Chronicles

It’s a common misconception that all geysers and hot springs in Yellowstone are acidic.  Some are, but the water that comes out of many of Yellowstone...

Volcanologists have a variety of ways of measuring present-day gas emissions from volcanoes.  But what about gas emissions that happened in years past...

Hayden Valley is a gorgeous expanse of grassland and meadows located right in the center of Yellowstone National Park.  It is a haven for wildlife and...

Yellowstone’s thermal features, like geysers and mud pots, are delicate and dangerous. So how can scientists get a close-up view of these structures...

It seems like a simple question: how old is a geyser?  We know that all of Yellowstone’s current geysers formed after the last glaciers scoured the...

Have you ever wondered just what went in to going from ground shaking detected by a seismometer to a located earthquake available for viewing online? ...

Yellowstone's Upper Geyser Basin is one of the truly unique places on Earth. It contains the world's highest concentration of geysers, including Old...

Explosive super eruptions are among the most extreme events to affect the Earth’s surface. Thankfully, humans have not experienced such an event in...

With oceans covering over 70% of Earth's surface and an atmosphere rich in volatile elements (carbon, nitrogen and oxygen), Earth has seemingly always...

The American West is a land filled with tales of adventure and discovery. Countless stories of brave frontiersman and frontierswoman are still told...