From Star Trek to Star Wars, Dune: Part Two to Galaxy Quest, these movies stand as the best films in the space opera subgenre ...

A former NASA staffer has claimed one of the astronauts on board the Challenger space shuttle saw footage of alien corpses ...

Scientists may need to broaden their horizons in their search for alien life.

TV has taught us many important lessons about aliens.They are either here to observe us, replace us, eat our cats, or gently judge our emotional intelligence while wearing a bathrobe. Sometimes all ...

Quite a bit of movie magic made "Alien" the sci-fi horror classic it is -- but one of its biggest challenges was solved with ...

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

Here's what to know about Georgia's odds of being invaded by aliens this year.

Titan might be the most hauntingly Earth-like world we’ve ever found — but twisted into something alien. Beneath its thick ...

Scientists found new evidence (or lack thereof) disproving the conspiracy theory that interstellar comet 3I/ATLAS is alien ...

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory claims, but a comet.

I react to an astronaut’s reported sighting that some interpreted as alien-related.

Scientists have found new evidence suggesting that interstellar 3I/ATLAS is not an alien spaceship, as one conspiracy theory ...