A single mathematical number determines the shape and size of stalagmites, thus solving a mystery hidden in caves.

Originally running from 1959 to 1964, The Twilight Zone offered a new, surreal story every week, many with a cruel twist.

Make room, earthling. We’re moving the other planets in our Solar System into our planetary neck of the woods.

Four key climate systems are showing signs of instability and approaching tipping points with potentially abrupt and ...