Sputnik skies to analysis of interstellar visitors, scientists are rethinking how and where to look for physical traces of ...

Language and radio signals may not matter to aliens. Instead, they might be using patterns to leave a biological fingerprint.

Tiny delays in pulsar signals measured by SETI scientists could aid the search for gravitational waves and extraterrestrial ...

Since its debut, "Star Trek" has introduced decades worth of new characters, locations, and alien races, but only a few ...

We asked our readers to name their favourite films in the sci-fi genre – and these were the titles that came up most often.

Including everything from mad scientists to robotic villains, awe-inspiring heroes, and even iconic movie monsters, these are ...

NASA has compiled a list of seven science-fiction movies it deems the most scientifically accurate in portraying space, alien ...

A layer of molten rock deep inside some rocky planets may be doing more than shaping their interiors. New research points to ...

Interstellar, Alien, and Back to the Future are all among the all-time greatest sci-fi movies that deliver everything you ...

Harvard astrophysicist Avi Loeb's speculative claim that 3I/ATLAS could be an alien AI probe ignites scientific debate, NASA ...

Consciousness could be a fundamental part of reality, like gravity or matter, according to this controversial theory.

It makes sense, really.