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 lunar far side. 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 lunar far side. Planetary Sciences Phys.org – latest science and technology news stories
How an ancient asteroid strike carved out 2 grand canyons on the moon
