Watch as two individuals demonstrate the incredible process of constructing an underground dwelling using primitive technology and natural materials. From clearing dense jungle foliage to digging deep ...

Astronomers suspect that a massive metallic cloud swirling in a nearby star system could be hiding a giant planet or dwarf star from view, after it drastically dimmed a sun-like star for around nine ...

Uncover the lost secrets of a once-mighty empire. The city of Angkor, the seat of the great Khmer Empire in Southeast Asia for 500 years, was once the biggest city in the world. For centuries, this ...

Part of what makes some classics worthy of such a title is the ingenuity and borderline movie magic they employ to tell their story. In the case of "Alien," for example, director Ridley Scott used ...

In this photo provided by El Salvador's presidential press office, a prison guard transfers deportees from the U.S., alleged to be Venezuelan gang members, to the Terrorism Confinement Center in ...