A huge asteroid discovered by scientists has broken records by spinning faster than any other asteroid of its size ...

The United States has a habit of showcasing its geology. Long before cities and highways showed up, forces beneath the ...

Reader's Digest named a historic road that crosses several popular tourist destinations in Arizona as one of the best places ...

This long, long road was crucial for the movement of troops during World War II before becoming the road trip par excellence ...

With backcountry camping, river swims and endless solitude, the multi-day Escalante hiking route offers deep insight into the ...

The Vikos Gorge, a wonder of the natural world in Greece, is known as the "Greek Grand Canyon" because of its cliffs and ...

The marvels of the Grand Canyon extend beyond its dramatic scenery. Underground, vast cave systems hold clues to the region’s ...

Reader's Digest named a historic corridor that crosses several popular tourist destinations in Arizona as one of the best ...

Rare fossils found along the Colorado River 'give us a fuller picture of what life was like during the Cambrian period,' says ...

What does it take for soft-bodied animals, built to rot not to rock, to persist for 500 million years in the Grand Canyon?

Earliest inner solar system planetesimals shaped the inventory of moderately volatile elements in terrestrial planets. Understanding where Earth's essential elements came from -- and why some are ...