The massive Olmec sculpture known as the Portal to the Underworld has returned to Morelos over 60 years after it was stolen.

On Mel Waters' property in the Manastash Ridge, west of Ellensburg, Washington, there is a hole in the ground that looks like a well -- but it's not a well. Like the owners of the property before him, ...

There is a big problem with quantum technology—it's tiny. The distinctive properties that exist at the subatomic scale usually disappear at macroscopic scales, making it difficult to harness their ...