The Dragon Bravo Fire has closed the North Rim for 2025. These 10 destinations are worthy alternatives to Grand Canyon North ...

A trail along the rim of the Grand Canyon showcases ancient rocks.

A remarkable coincidence occurred 56,000 years ago, when the impact that created Meteor Crater triggered both a ...

Rocks found along the Colorado River in Arizona turned out to contain fossilized fragments of soft-bodied creatures, ...

Five hundred million years ago, the Earth saw a huge jump in the diversification of life forms called the Cambrian Explosion.

Learn more about the Meteor Crater near the Grand Canyon and how it may have created a paleolake thousands of years ago.

The researchers were fascinated by a landslide that formed a paleolake and an asteroid impact that carved a massive crater, ...