Dallas-Fort Worth is also under risk for excessive rainfall on Friday afternoon and evening, with heavy showers and ...

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 ...

The Main Development Region of the Atlantic Ocean stirs for the first time this hurricane season. Meanwhile, a summer pattern ...

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 ...

Evidence comes from decades of investigative work involving driftwood and lake sediments found in caves high above the river ...

The building was surrounded by vegetation on fire when a team of “helitack” firefighters arrived to protect the area on ...

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

The Grand Canyon, one of the most iconic geological formations on Earth, may hold deeper secrets about our planet’s history than previously thought. A recent study has uncovered an unexpected ...

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 ...