As a Delta Air Lines jet was flying over Arizona on a clear day, the co-pilot was providing his passengers with a running commentary about landmarks over the PA system.

"Coming up on the right, you can see the Meteor Crater, which is a major tourist attraction in northern Arizona.  It was formed when a lump of nickel and iron, roughly 150 feet in diameter and weighing 300,000 tons, struck the earth at about 40,000 miles an hour, scattering white-hot debris for miles in every direction.  The hole measures nearly a mile across and is 570 feet deep."

To this, one passenger looking out the window exclaimed, "Wow!  Look honey, it just missed that road!!!"