For centuries, humanity has looked toward the stars searching for signs of intelligent life. But what if the biggest ...

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

This UFO was identified by the U.S. Air Force Project Blue Book program as part of a Sputnik satellite hoax. TY GREENLEES / STAFF Air Force Musuem Shows Off "UFO" Artifacts from Project Blue Book.

Streetlights shaped like alien heads line the roads of Roswell, New Mexico, where murals of flying saucers streak across storefronts and tourists pose beside statues of little green men. Nearly eight ...

Filmmaker Sean Stone says truly operational alien-style anti-gravity propulsion would erase trillions from the global oil ...