On April 10, 2025, geologists from Yellowstone National Park were conducting routine maintenance of temperature logging ...

Hidden beneath the Philippine Sea, this colossal supervolcano features a caldera an impressive 150 km (93 mi) in diameter, making it the largest known caldera in the world, even larger than ...

Yellowstone National Park's geological history is one of the most intensely studied in North America. A new geologic unit ...

From asteroids the size of football stadiums to nuclear war and man-made pandemics, it can seem as if humankind is in ...

Yellowstone National Park, known for its stunning landscapes and geothermal features, is sitting atop one of the most ...

In what year was Yellowstone National Park established as the world's first national park? Test your knowledge of Yellowstone National Park! Attempt this GK quiz on its location, wildlife, and facts ...

In geology, even small layers can tell big stories. But figuring out the origins of such small layers can be a challenge, ...

On the morning of June 21, visitors at Grand Prismatic Spring in Yellowstone National Park observed a bison slip into a ...

Learn more about the new hydrothermal feature that appeared last summer in Yellowstone National Park, and how, even though it ...

The recent death of a bison at Grand Prismatic Spring is an emphatic example of the danger posed by thermal areas in Yellowstone National Park. But there are some common misconceptions about what ...

It happened on Saturday morning, June 21, at the park’s Grand Prismatic Spring, Michael Poland, geophysicist with the U.S.

Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory.