About 35 million years ago, an asteroid struck the ocean off the East Coast of North America, leaving behind a massive impact ...

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

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

If you're looking for the ultimate outdoor photo spot, Utah has vibrant purple mountains - and they're near the state's mini" Grand Canyon too!

Two Grand Canyon-size features on the far side of the moon were likely formed in about 10 minutes after an unknown object ...

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