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

Scientists can peer into cells to get a limited view of their activity using microscopes and other tools. However, cells and ...

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

Across India, ancient architecture continues to offer clues about early engineering, metallurgy, and scientific thought.

This visualization of the Laniakea supercluster, which represents a collection of more than 100,000 estimated galaxies spanning a volume of over 100 million light-years, shows the distribution of dark ...

Neanderthals are Homo sapiens’s closest-known relative, and today we know we rubbed shoulders with them for thousands of years, up until the very end of their long reign some 40,000 years ago. Most ...

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 ...