Dive into the fascinating theory that octopuses might not be from Earth—are they really aliens?

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

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

NO ALIENS, dead or alive, have ever been taken to Porton Down, a government website proclaimed last year in an attempt to ...

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

Robert Patrick is best known for playing the T-1000 in "Terminator 2: Judgment Day," but he was also in a sci-fi flick with a ...

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

Bacteria that thrive on Earth may not make it in the alien lands of Mars. A potential deterrent is perchlorate, a toxic chlorine-containing chemical discovered in Martian soil during various space ...

Astronomers have detected a mysterious object in our galaxy that emits intense bursts of radio waves and X-rays with ...

Scientists have shortlisted 100 unusual radio signals from space after a 21-year search using Arecibo Observatory data. While not confirmed as alien messages, the findings keep hopes of ...

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

Ridley Scott's iconic sci-fi horror movie "Alien" was released in the United States on May 25, 1979, meaning it turns 47 this year.