This surprising connection between Arizona's world-renowned geological features stretches back 56,000 years, to when a ...

When an asteroid made Meteor Crater in northern Arizona, it did more than leave the Earth’s best preserved impact crater. According to new research, the earthquake that the collision caused induced a ...

Geology is full of detective stories about the Earth's history, and a new paper in Geology by University of New Mexico ...

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

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 ...

On his first trip to the Grand Canyon Star Party, Dave Eicher joins thousands for a week of lectures, observing, and cosmic wonder.

A park employee at the Grand Canyon was exposed to hantavirus, and a separate case of exposure to rabies in the park has also been confirmed.

The more scientists study the Red Planet, the more they find unusual objects and patterns scattered across Mars' surface. As ...

President Donald Trump, in a July 3 executive order, signaled higher fees for foreign tourists visiting the Grand Canyon and other national parks.

For one Grand Canyon refugee, it’s a homecoming. For the others, it’s a new place to call home. In late April, Grand Canyon University opted to cut its highly successful men’s volleyball ...