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Winslow Arizona meteor impact crater

This impact crater in Winslow, Arizona, is one of about 200 on Earth. At 50,000 years old, it’s also one of the newest. The crater is 1.1 km (.7 mi) in diameter and 150 m (495 ft) deep. The meteorite that made it weighed 100,000 tons. Most meteorites that hit the ground are too small to leave a crater, but anything larger than a house explodes just before or during impact and leaves a crater that is much larger than itself. Photo © Charles and Josette Lenars/CORBIS