Erich von Däniken, the Swiss author whose bestselling books about the extraterrestrial origins of ancient civilizations ...

Scientists have proposed that advanced alien civilizations could build a Dyson sphere around a black hole instead of a star.

A new paper posits that advanced alien civilizations may communicate through subtle flashes, like fireflies do on Earth. The ...

Machine learning is quietly rewriting the rules of the cosmic hunt for company. Instead of waiting to recognize familiar ...