These ancient structures still stand - but the people who built them remain a mystery that history can’t fully explain.

A huge bar of iron has been discovered lurking inside the iconic Ring Nebula. The structure is enormous, spanning hundreds of ...

In a recent revelation that could reshape our understanding of space and the potential for extraterrestrial life, NASA has released data suggesting the presence of artificial structures on the moon.

During the season eight premiere episode of "The UnXplained" host William Shatner takes viewers all over the world to examine ancient structures.

The Defense Advanced Research Projects Agency (DARPA) — which has been known to fund the development of sci-fi-sounding ideas like flying aircraft carriers or massive streetlights on the Moon — is now ...

Archaeologists have recently uncovered hundreds of massive structures at a site ominously known as the ‘Gates of Hell,’ leaving experts puzzled over their purpose. This discovery adds a new layer of ...