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 ...

The vast valleys of Vallis Schrödinger and Vallis Planck demonstrate the incredible forces that shaped the face of the Moon.

The Grand Canyon Trust recently released the results of a poll on Arizona voters’s support for national monuments. The poll ...

A midair collision at the Grand Canyon killed over 100. The disaster partially led to the start of the FAA and changed air ...

Republican legislators and the Trump Administration have launched a multi-pronged effort to cut back national monuments in ...

A visit to the Grand Canyon is a true bucket list item for anyone on a US road trip. But Arizona isn't the only place where an ambitious explorer can find a Grand Canyon. NASA’s Lunar ...

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

Arizona has hosted the Super Bowl several times. What year will the Super Bowl be in Arizona again? Here's when it could ...

A federal judge has rejected a lawsuit by Arizona lawmakers challenging former President Joe Biden’s designation of a ...

For comparison, it took 5 million to 6 million years for water to erode the landscape of Arizona to create the Grand Canyon. The celestial object that plowed into the moon likely hit with a speed ...

Center for Biological Diversity Reports President Trump’s Interior Order Threatens to Open Grand Canyon National Monument to ...