After a 35-year quest, the final solution to a famous puzzle called Kryptos has been found. Two writers discovered the fourth answer to the code hidden among the Smithsonian Institution’s archives.

Over two hundred fifty million years ago, India, Africa, Australia, and South America were all one continent called Pangea. Over the next several million years, this giant southern continent proceeded ...

Scientists discover all stalagmites growing from cave floors follow a mathematical rule that explains how these mineral ...