Videos have started circulating of a large explosion that happened at Yellowstone. A large pillar of black and gray smoke and ...

An eruption of steam, rock and mud sent visitors scattering at Yellowstone National Park on Tuesday — a terrifying and baffling scene that even scientists struggle to understand or predict.

Jonathan Newton / The Washington Post via Getty Scientists discovered a magma cap under the surface of Yellowstone National ... in preventing a large volcanic eruption A magma cap that is likely ...