Two gargantuan canyons on the moon were carved by a hailstorm of rocks — and that’s good news for future lunar astronauts.

Scientists have discovered that two massive lunar canyons, deeper than the Grand Canyon, were formed in a matter of minutes ...

The lunar canyons Vallis Schrödinger and Vallis Planck are extraordinarily deep, and scientists now know the valleys were ...

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

Fishers Peak State Park Manager Crystal Dreiling said the park's next "trail package" would soon go out to bid — a project ...

CAMP VERDE — Arizona's newest state park is throwing itself a birthday party Saturday, Feb. 8, and is expected to get much ...

Stunning discoveries and fresh breakthroughs in DNA analysis are changing our understanding of our own evolution and offering a new picture of the "other humans" that our ancestors met across ...

The Sierra Nevada Mountains stretch out before you like a crumpled blanket of green and gray, their peaks playing hide-and-seek with wispy clouds. It’s the kind of view that makes you want to break ...

First, the park entrance fee is $35 per vehicle, which is good for seven days. If you’re planning to visit multiple national parks in a year, consider investing in an America the Beautiful pass. For ...