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

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

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

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

Zion National Park to Grand Canyon road trip guide • Discover the best route, scenic stops, travel tips, and must-see ...

In the heart of California, the Sequoia and Kings Canyon National Parks are home to some of the tallest trees on the planet.

Yellowstone itinerary is ideal for either first time visitors or long time fans of the National Park. Each day offers both ...

The road trip focuses on the best options along the fastest path from Minneapolis to Yellowstone. This takes drivers from Minneapolis, north to North Dakota, and across through Montana. Finally ...

Leaving the trailhead behind, follow the canyon rim along a broad flat bench of De Chelly Sandstone, which was deposited as windblown sand dunes 250 million years ago. The trail continues to drop at a ...

Groundwater is life in Arizona. Find out how we’re helping Grand Canyon communities manage their limited water supplies.

For travelers on the North Rim, the North Kaibab Trail is the ... Travelers can take the Grand Canyon Lodge Hiker Shuttle to the North Kaibab Trail that runs twice each morning during peak season ...

President Donald Trump’s proposal to rename the Gulf of Mexico to the “Gulf of America” exemplifies a focus on symbolic gestures rather than addressing significant global challenges.