A red-hot lava flow two miles long has been attracting crowds to the slopes of Mount Etna on the island of Sicily, Italy.

25 of the most famous outfits in Grammys history Earth from space: A mysterious 'black hole' in Pacific Ocean that sparked ...

The Rocky Mountain states say they don't have water to give. The Southwest says it can't save the Colorado River on its own.

Areas charred by last month's wildfires in Southern California now face a new threat from a powerful, but fast-moving Pacific ...

This spring, the Colorado River District will be hitting 11 communities in western Colorado to discuss water issues facing ...

Scientist Paul Helfrich has studied the T. bryo fish parasite for years and remains fascinated by its life cycle and ...

I’ve gone from pulling on my heavy down parka jacket and tucking the hood up around my face to wearing only a light ...

The latest eruption of Mount Etna has drawn crowds of tourists to the region, which have congested streets and paths for rescue workers.

A stronger atmospheric river is set to hit Northern California on Monday and then hit Los Angeles County on Tuesday, aiding hopes of a more definitive end to a devastating fire weather season for ...

Para leer esta historia en español, haga clic aquí. For thousands of years, the glaciers that crown the Cordillera Blanca ...

A major atmospheric river storm is barreling toward California, raising the specter of damaging landslides and flooding ...