Might America’s most feared volcano actually be far less dangerous now than the headlines let on? For decades, Yellowstone has been portrayed as some sort of ticking geological time bomb, with its ...

A series of explosions created a silica-filled water pool to the left of Tree Basin in Yellowstone National Park.

The geyser is likely to fall back into dormancy soon, but there's a slim chance the spectacular eruptions will continue into ...

Yellowstone’s volcanic heart is one of the largest magmatic systems on Earth, yet the park’s steaming vents and geysers are missing a gas that usually signals magma close to the surface. That absence, ...

Add Yahoo as a preferred source to see more of our stories on Google. Yellowstone averages between 1,500 and 2,500 earthquakes per year. In Yellowstone National Park, a bulge the size of 279 football ...

A gigantic bulge in the north rim of the Yellowstone caldera is the latest sign of volcanic activity in the national park. Geologists call this type of bulge “volcanic uplift.” It’s often caused by ...

Did anyone else grow up in perpetual fear of any and all natural disasters? I don’t know if it was cartoons or what, but as a kid who lived in the very urban city of Philadelphia, I was convinced I ...

The otherworldly landscapes of Yellowstone National Park have captured imaginations for centuries, with their bubbling mud pots, peculiar rainbow-colored pools, and dramatic geysers that shoot skyward ...