Searchers found Ben Andersen's body in his SUV at the bottom of a ravine. He last appeared on GPS back on May 18.

One Planet, 1,500 Personalities: The Uniqueness of Volcanoes Every volcano is unique, with its own special quirks (and yes, these can change over time). But of the roughly 1,500 active land volcanoes ...

A snowcapped backdrop to Seattle and Puget Sound, Mount Rainier is a slumbering giant that last erupted in the 1890s. An active volcano, Mount Rainier has erupted dozens of times throughout its ...

Forbes contributors publish independent expert analyses and insights. David Bressan is a geologist who covers curiosities about Earth. How and if a volcano explodes depends on how and when bubbles of ...

New research reveals that volcanic magma can generate gas bubbles not only as pressure drops during ascent, but also through internal shear forces that “knead” the molten rock. These shear-driven ...

Scientists have uncovered a long-missing piece of the volcanic puzzle: rising magma doesn’t just form explosive gas bubbles when pressure drops—it can do so simply by being sheared and “kneaded” ...

The explosiveness of a volcanic eruption depends on how many gas bubbles form in the magma—and when. Until now, it was thought that gas bubbles were formed primarily when the ambient pressure dropped ...

In a new study, researchers show that gas bubbles can form in the rising magma not only due to a drop in pressure but also due to shear forces. If these gas bubbles grow in the volcanic vent early on ...

Mount Hood's famous Timberline Trail traverses canyons, rivers, forests and alpine areas on a 40-mile circuit around Oregon's tallest mountain. Mount Hood is home to some of the most stunning ...

Learning is all about asking questions, and no one asks questions better than children. Boise State is home to more than 1,400 faculty members and researchers who are eager to answer these amazing ...

A mysterious and highly active undersea volcano off the Pacific Coast could erupt by the end of this year, scientists say. Nearly a mile deep and about 700 miles northwest of San Francisco, the ...

"Mt. St. Helens, Mt. Rainier, Mt. Hood, Crater Lake — those kind of volcanoes have a lot more gas and are more explosive in general. The magma is more viscous," Chadwick said. "Axial is more like the ...