Is it possible that another civilization existed before us? That's the question posited by the Silurian Hypothesis.

Swipe Down for Full Video Story It is no secret that humans are the dominant species on Earth. And with no confirmed evidence ...

According to ancient Greek texts, this was a land of eternal spring, inhabited by a race of giants who lived for a thousand years without disease or war. They called it Hyperborea, a realm existing ...

Around 8,000 to 6,000 BCE, the North and Baltic seas... weren’t seas at all. Instead, they were vast plains that were home to ancient human civilizations. But as the curtain drew to a close on the ...

The pyramid-building Maya reigned over much of Central America. Today, descendants keep Maya history alive—a sign of resilience. This sculpture of the head of a Mayan warrior found in the Temple of ...

Earthlings, brace yourselves: the galaxy may be emptier than your last Tinder date. According to a new study, any alien civilizations out there? Probably short-lived — and doomed to fail spectacularly ...