Sunset Crater Volcano National Monument highlights northern Arizona’s volcanic (and explosive) past, speckled with cinder cones and long-hardened lava flows People often get Sunset Crater confused ...

About 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact ...

Flashy neon signs for motels, eclectic gift shops, full service stations, quirky museums and mom-and-pop restaurants, plus ...

On the Reddit thread r/arizona, users share things about the Grand Canyon state that they find underrated, from food and ...

Electronic signs now tell truck drivers how many truck parking spaces are available at Interstate 10 rest areas in western ...

New research shows that meteoroid impacts on Mars generate seismic signals that travel much deeper than previously thought, ...

It's certain that recently discovered asteroid 2024 YR4 will swing close to Earth in 2032. The chances of an impact remain ...

Meteor Crater in Arizona is believed to have been created by a 50m metallic meteorite impact around 50,000 years ago. Credit: ...

The far side of the Moon has its own versions of the Grand Canyon—two of them, in fact! A new study explains how these deep ...

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It's actually good news that NASA spotted a sizable asteroid with a (small) chance of hitting Earth in 2032. It means our ...