The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.

Astronomers swept millions of candidates and found no alien signals from K2-18b, setting the first power limit on any ...

"The results from 3I/ATLAS show how realistic it is to detect a signal with the technology we have today." When you purchase ...

The SETI Institute said Wednesday that extensive radio scans by its telescope in Northern California found no signs of ...

Science fiction stories about “alien” invaders are often political allegories for anxieties around immigration. Now, a ...

Emily Blunt confirmed that she made the unusual-sounding clicking noises highlighted in trailers for the new science fiction ...

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This 1980s Disney sci-fi adventure film is pretty inventive, and it remains a nostalgic favorite roughly four decades later.

Christian leaders Jeremiah J. Johnston and Greg Laurie say the Pentagon's latest UFO files point not to aliens, but to a biblical spiritual realm filled with angels and demons.

If you're a skeptic, these UFO sightings will convince you that the truth is out there—and it may not be from Earth.

Their microtonal rock has been a huge viral hit – but are they really 333-year-old aliens inspired by Borneo monkeys? The Quebecois duo tell all ...

The xenomorph from the Alien franchise is one of the most legendary creatures in cinema history. Now it’s the star of FX’s series Alien: Earth too. Many filmmakers have put xenomorphs on screen and ...