(AP) — New research shows that when an asteroid slammed into the moon billions of years ago, it carved out a pair ... in size to Arizona’s Grand Canyon in barely 10 minutes.

The Grand Canyon, located in Arizona, USA, is a breathtaking natural wonder that has captivated the world with its ...

James Hutton, Scottish rock man - right. Okay, armed with that information, we can join physicist, Michio Kaku and his pal, Dr Dave Thayer, looking at how the Grand Canyon was carved out of rock ...