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

The Grand Canyon in Arizona is one of Earth's natural wonders, carved out over millions of years by the gradual erosion power of the Colorado River. Close to the moon's south pole are two canyons each comparable in size to the Grand Canyon that were born in a much different process.

Each year, millions of visitors marvel at the geological intricacy and beauty of the vast chasm of the Grand Canyon carved through the Arizona desert by 5 million years of water erosion. It is interesting to contemplate the force of water as over the eons the Colorado River meticulously sliced through layers of Arizona bedrock.