As ancient and vast as the Universe is, it seems like some alien race arose in the galaxy long before us, but who rose before ...

Life is incredibly complicated, but for most of Earth’s history it was much simpler. Is it possible the Universe is full of planets with very simple life, and complex organisms are rare?

Scientists suggest advanced alien civilizations might remain undetectable, using AI and exotic communication. They also ...

Even with modest assumptions, the Drake Equation often suggests the galaxy should be chock full of extraterrestrial neighbors ...

A NASA scientist has offered perhaps the most sensible explanation as to why aliens have been ghosting us for all these years ...

It's one of life's biggest unanswered questions: if there's life beyond Earth, why hasn't it contacted us? Now, a scientist ...

The Milky Way contains a modest amount of alien civilizations, a new paper proposes — and there's a reason we aren't seeing ...

An astrophysicist has proposed an intriguing explanation for why humanity has never made contact with an extraterrestrial ...

Is there a reason aliens are ghosting us? Maybe they are bored of trying? That’s the latest theory from scientists who ...

A new theory from a scientist working with NASA, raises a surprising question about extraterrestrial life and why they might ...

The reason why aliens have not found us and why we haven't found anyone else likely boils down to the theory that no one is ...

For centuries, extraterrestrial life has been a debatable subject, arguing about whether another life exists beyond Earth's ...