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.
Scientists say America is no longer the only place with a Grand Canyon as NASA spots two enormous chasms carved into the ...
The National Park Service opened a lottery for extended self-guided rafting trips along the Colorado River in Grand Canyon National Park this week, offering hundreds of spots for 2026.
Graham Averill is Outside magazine’s national parks columnist, but some of his favorite adventures have happened inside state parks. New perk: Easily find new routes and hidden gems, upcoming running ...