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.

New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair of grand canyons on the far side.

A dive into probabilities, asteroid impact modeling, and what sort of damage an approximately 180-foot asteroid could cause on Earth.

The risk of impact is likely to drop to zero as observations of Asteroid 2024 YR4 continue.

Researchers say there’s a 1.3 percent chance that the space rock 2024 YR4 could strike our planet — but not until December 2032.