Given the size and age of the universe, it should be full of species with technology far more advanced than our own. But so far there is no trace ...

The White House advisor has earned attention-and intense scientific criticism-for his theories about alien technology.

For years, whistleblowers have publicly alleged that the United States government is withholding what it knows about UFOs ...

The Donald Trump UFO conspiracy involves alleged secret UAP operations in Texas, with claims of military involvement and restricted airspace.

New UFO files have emerged recently, leading to questions about what exactly military pilots and sensors have been seeing in ...

Sometimes, "unidentified" means just what it sounds like.

On the surface, Steven Spielberg's latest can be taken as a sci-fi thriller with a message, but reading between the lines ...

After decades of secrecy, stigma, and sometimes silliness—like the conspiratorial tales about recovered spacecraft and alien ...

Now that FX's Alien: Earth has officially been renewed for Season 2, it can explore more of the sci-fi franchise's best ...

A NASA Curiosity rover image has sparked claims of an 'alien missile' on Mars, though NASA attributes such formations to ...

Spider-Man: Brand New Day introduced a fully armored Scorpion, but one mystery lingered after the credits rolled. Now, ...