Ranger naturalist George D. Marler meticulously documented changes in hydrothermal activity in the geyser basins of ...

The man who authorities say tried to carry out a mass shooting in Yellowstone National Park last year spewed racist views months before his attempted attack, prosecutors said in court documents.

The man who authorities say tried to carry out a mass shooting in Yellowstone National Park last year spewed racist views months before his attempted attack, prosecutors said in court documents. In ...

The largest rhyolitic storage zone lies under the northeast part of Yellowstone Caldera, with a volume comparable to the smallest past caldera-forming eruptions (approximately 400 cubic kilometers).

Editor's note:Yellowstone Caldera Chronicles is a weekly column written by scientists and collaborators of the Yellowstone Volcano Observatory. This week's contribution is from Michael Poland, ...

The last major explosion occurred around 631,000 years ago, creating a massive crater known as the Yellowstone Caldera. Many curious onlookers have wondered whether—and when—Yellowstone might ...

They placed a number of sensors in the Yellowstone caldera, as well as areas to the north and east—where the supervolcano's magma stores were thought to be—to measure the conductivity of its rock.

It’s also one of the largest volcanoes on Earth. The Yellowstone Caldera is a 70 by 45 kilometre-wide crater in northwestern Wyoming, blasted out of the Earth’s crust some 640,000 years ago in ...