A boiling hot geyser in Yellowstone National Park has suddenly exploded violently, sending hot water and debris flying into the air. The "hydrothermal explosion" occurred at around 10 a.m. local time ...

Yellowstone National Park visitors were startled last month by an unexpectedly fierce hydrothermal explosion – an eruption of underground hot water – that spewed steam, boiling water, mud, and ...

The union vice president at U.S. Steel Clairton Coke Works is shedding new light on what led to the deadly explosion and the active effort to save the damaged batteries. The contractors, who work full ...