Archaeologists in Romania have uncovered portions of an ancient megastructure from around 6,200 years ago. The oak-floor ...

Could the strange light fluctuations of Tabby's Star be evidence of a Type II civilization building a Dyson Sphere?

Los Angeles County Museum of Art's new David Geffen Galleries represents the riskiest leap taken by any L.A. institution this ...

Have they finally solved the ancient Egyptians’ pyramid scheme? Aliens might not have built the pyramids — but the ancient ...

The tallest buildings in the world have become defining symbols of modern ambition. Discover 20 soaring towers with only 3 ...