Science fiction often imagines alien civilizations so advanced they seem like gods, with powers that look supernatural to anyone beneath them. But this episode asks a darker and more fascinating ...

Evidence of alien life or cosmic pyramid scheme? A documentary filmmaker sparked a discussion of advanced Martian ...

Could ancient humans really have built the pyramids without extraterrestrial help? Or do such questions reveal more about ...

The most consequential signal humanity ever detects from another civilization may not arrive as a calm introduction. It may ...

A new scientific framework suggests that even if signals or physical traces from alien civilizations reached Earth, detecting ...

Alien planets are far away but extreme lasers on Earth are giving scientists a way to investigate what they're like.

A civilization capable of interstellar travel may also be one that has moved beyond conquest, excess and ecological ...

John Carpenter proved he could do far more than horror classics in this formulaic yet compelling 1984 film starring Jeff ...

Humans have wondered for centuries whether we are alone in the universe — and a new study suggests that if alien ...

New SETI research suggests space weather like solar winds could be interfering with alien radio signals, making them harder to detect.