Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

Federal judge dismisses Arizona GOP lawsuit challenging Biden's designation of Baaj Nwaavjo I'tah Kukveni National Monument ...

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

The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.

Scientists proposed an explanation for the formation of Vallis Schrödinger and Vallis Planck near the lunar south pole, which ...

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

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

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

Arizona has some of the prettiest sunsets, but why? There's a science behind it. Here's what to know, including sunset times ...

Only Louisiana and New Mexico see more hit-and-run fatalities per capita than the Grand Canyon State.

Arizona's electric utilities are planning for more nuclear power as part of a new look for this energy source and the ...

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...