The moon's grand canyons were carved in the blink of an eyeThe moon's Vallis Schrodinger and Vallis Planck canyons formed quickly due to asteroid impacts, unlike the Grand Canyon which formed through gradual erosion.
Gorge-ous: the world's grandest canyons in picturesOregon seeks national monument status for the Owyhee Canyonlands, emphasizing its natural beauty and conservation needs.