Studying tree rings helped scientists pinpoint when Mount Rainier last sent a lahar down its steep slopes, which could help ...

A supermassive black hole is reawakening inside a distant galaxy cluster—and after almost 100 million years of slumber, ...

Hawaii's Kilauea volcano erupted again on Monday, sending lava more than 800 feet into the air during a roughly 10-hour ...

Forecasters at NOAA's Space Weather Prediction Center monitored a solar flare lasting for hours on Sunday. The Coronal Mass ...

Following the eruption, one team had an idea to help recover from the devastation: send gophers on a day trip.

Scientists have discovered an enormous stream of super-hot gas erupting from a nearby galaxy, driven by a powerful black hole ...

TOKYO (AP) — Mount Fuji hasn’t erupted since 1707. But for Volcanic Disaster Preparedness Day, Japanese officials have released computer- and AI-generated videos showing a simulation of a potential ...

That's the word U.S. Geological Survey volcanic experts used to describe a muddy eruption at Black Diamond Pool in Yellowstone National Park on Saturday morning. Video shared by the USGS on social ...

Indonesia’s Kawah Ijen volcano appears to glow electric blue at night, but the colour does not come from lava. Instead, ...