At 2 a.m. on July 8, 2025, instruments across Washington State picked up an unusual signal from Mount Rainier. Over the following weeks, the volcano generated 10,834 small earthquakes, the largest ...

Scientists have built the most detailed map volcanoes on Venus, which is also the most complete volcano map of all planets in the solar system. The map reveals the locations and sizes of all 85,000 ...

Volcanoes in Alaska, Washington state, Oregon and Hawaii have been rumbling and even spewing lava, enough to spark a swarm of news stories. But despite the jolts and temblors, geologists say there's ...

Subatomic particles called muons are born from cosmic rays bombarding the atmosphere. Because muons can penetrate objects, scientists are using them to peek inside volcanoes. This technique — called ...