A massive wildfire in northern Arizona has grown by thousands of acres over the weekend, as firefighters work to regain ...

Two of Arizona's most famous landmarks may be linked by cosmic violence: the asteroid that gouged out Meteor Crater may have ...

A remarkable coincidence occurred 56,000 years ago, when the impact that created Meteor Crater triggered both a landslide-dammed lake and a paleolake formation in the Grand Canyon. Earth’s ancient ...

The Dragon Bravo Fire that destroyed the North Rim lodge will affect visitors and nearby communities. Here's the Canyon's ...

New research links the impact at Meteor Crater to a Grand Canyon landslide that may have created an ancient lake 56,000 years ...

A massive landslide would have dammed the Colorado River, forming a deep lake that has since dried up. A meteorite impact ...

Monsoon season in northern Arizona can be a welcome respite from early-summer heat. But the intense thunderstorms can also produce flash flooding, sending water and debris coursing rapidly down previo ...

Researchers have found a link between two geological events in iconic locations of the U.S. Southwest that scientists previously didn't think had anything to do with each other.

Nearly every county in the U.S. experiences flooding, yet few homeowners have flood insurance policies. The Insurance Information Institution's Mark Friedlander explains the market. And, fires in the ...

Based on remarkably similar ages, the meteor impact that created one of Arizona's most recognizable landmarks and wood and sediments found in caves high up in the walls of the Grand Canyon, a new ...

A wildfire in tinder-dry forest destroyed dozens of buildings, prompting public outrage that it was left to burn for a week ...

Massachusetts assisted living facility; Firefighters battle wildfires raging near Grand Canyon; New flood watches in Texas ...