From Arizona's canyons to Utah's buttes and beyond, our national parks columnist shares the most adventurous Southwest ...

Blurring the line between reality and fantasy, these unique natural wonders prove that nature is the ultimate artist.

Explore this little-known canyon in Iowa. Home to intriguing caves, miles of trails, and diverse wildlife, this is one of the ...

The Yellowhammer State didn’t earn the moniker Alabama the Beautiful for nothing. From white-sand beaches to majestic ...

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...

With 22 national parks and monuments to its name, Arizona boasts some of the most astonishing landscapes in the country, from the Grand Canyon to the towering buttes of Monument ...

The debris landed like missiles, digging out two canyons comparable in size to Arizona’s Grand Canyon in barely 10 minutes. The latter, by comparison, took millions of years to form.

The extraordinary formations, each comparable in size to Earth’s Grand Canyon, are hidden on the ... as well as studying the ancient lunar material they helped bring to the surface.

The debris landed like missiles, digging out two canyons comparable in size to Arizona's Grand Canyon in barely 10 ... at the Moon’s surface, where an ancient asteroid strike carved out a ...