How an ancient asteroid strike carved out 2 grand canyons on the moon
New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...
The Black Canyon Donkey Derby: How a race for gold became a beloved sport in Arizona
Black Canyon Donkey Derby is coming up next month. If you're unfamiliar with the race, it's a competition where people run ...
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The Lottery to Raft Grand Canyon National Park's Colorado River Is Open — What to Know
The National Park Service opened a lottery for extended self-guided rafting trips along the Colorado River in Grand Canyon ...