The Earth's Grand Canyon took millions of years to carve, but the moon's grand canyons took about ten minutes.
New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons ...
Each year, millions of visitors marvel at the geological intricacy and beauty of the vast chasm of the Grand Canyon carved ...
The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power ...
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