Crater That Killed Dinosaurs Also Provides Clues To Ice Age Sea Levels
Scientists have been studying the crater where the asteroid hit the dinosaurs. The crater that killed the dinosaurs also provides clues to the Ice Age sea levels.
Mayan city, lost for centuries, discovered in Mexican rainforest
Chactun, an ancient Mayan city abandoned ten centuries ago, has been uncovered in a Mexican rain forest. The area appears to have once been a thriving center of government, recreation and worship.