A throwaway line about Vulcan sparked decades of debate, until one clever theory finally made it official canon.

Visions of aliens, the result of years of extensive drug use? Or something rooted in fact? Read more about the musical ...

Are real-life E.T. types about to reveal themselves? Bill Ervolino says stay tuned.

Younger adult colon cancer deaths are concentrated in people with less education, study says King Charles will address ...

If forced to choose one descriptor for the octopus, the best word may be "otherworldly." These truly amazing marine animals ...

Even at a glance, the planets in our solar system are wildly diverse. Huge and small, airless and densely packed with ...

The subject of UFOs and aliens is vast and complex, making it impossible to summarize in one article. Flying saucers/UFOs made headline news throughout the world in 1947, sparked by two major, highly ...

In 1965, twelve astronauts vanished into deep space on a mission Earth never acknowledged—sent to live among aliens on a planet called Serpo. What they found was a world of impossible tech, but not ...

What would alien life from another planet be like? But we rarely ask the opposite: What would they think of us?

By Lisa Richwine LAS VEGAS, April 15 (Reuters) - Steven Spielberg described his 1977 UFO film "Close Encounters of the Third ...