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

Senate Republicans on Wednesday evening narrowly blocked a final vote on a war powers resolution, which would have prevented ...

This peaceful village in Arnarstapi, Iceland sits between cliffs and ocean, surrounded by raw, volcanic beauty.

Hawaii Volcanoes National Park's Kilauea volcano erupted for the first time this year, drawing hordes of crowds. Here's what ...

"Awakening after a decade of slumber." Scientists issue warning that hidden 'ice volcanoes' could awaken: 'Talking about ...