Across the United States, scientists who track the country’s most powerful volcano systems are picking up new signals that deserve close attention, but not panic. From the restless magma reservoir ...

In the past, Steamboat Geyser in Yellowstone National Park regularly shot water over 300 feet into the air. But the feature ...

Yellowstone’s volcanic system sits beneath one of the most visited national parks in the United States, yet its rare potential for a super-eruption is more often framed in apocalyptic memes than in ...