Yellowstone National Park sits atop one of Earth’s largest volcanic systems, and right now that system is slowly reshaping the ground. Instruments show that the Yellowstone caldera is inflating into a ...

Beneath a national park famous for its geysers and bison herds sits one of the most powerful volcanic systems on Earth. Most ...

A sideways flow of hot mantle rock, not a deep plume rising from near Earth’s core, may be feeding one of the planet’s most closely watched supervolcanoes. That is the picture emerging from a new ...