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

Using energy greater than the global nuclear weapons inventory, an impact event carved two grand canyons into the moon’s ...

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 ...

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