we made one of the first super clear images of the top of the magma reservoir beneath Yellowstone caldera." "Seeing such a strong reflector at that depth was a surprise," Schmandt said.

A recent study discovered the exact location of the Yellowstone supervolcano's magma cap -- and hints at when it may erupt.

Yellowstone contains about 120 thermal areas that collectively are home to more than 10,000 thermal features, like hot ...

Ever been mesmerized by the swirling colors of Grand Prismatic Spring and wondered what fuels that otherworldly boil? It turns out that beneath the wild expanse of Yellowstone National Park lies one ...

United States Geological Survey (USGS) scientist Mark Stelton (left) and Kenneth Sims, a UW professor of geology and geophysics and a member of the USGS Yellowstone Volcano Observatory, examine a ...