At its peak, the ancient Indus River Valley civilization featured gridded streets, multistory brick homes, flush toilets and bustling shops. Its people traded gold, precious stones and items such as ...

SPRINGFIELD, Mo. — Archaeologists from Missouri State University are confirming the existence of a previously unknown ancient civilization hidden deep within the Brazilian Amazon, using advanced ...

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 ...