If intelligent life should be common in a universe with hundreds of billions of galaxies, why does the cosmos remain eerily ...

Debunking alien claims matters, but so does telling richer, more compelling stories about how humans shaped their own past.

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

Shaped by a different biology or culture, other intelligent civilisations – if they’re out there – might understand the ...

Filmmaker Steven Spielberg spoke about extraterrestrials and their possible existence during a conference in Austin ...

Former Pentagon official Christopher Mellon says he has seen 'shocking' satellite images and videos of apparent non-human ...

Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures ...

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

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

Steven Spielberg says he suspects aliens exist on Earth now and believes his new film Disclosure Day explores how humanity ...