An extraordinary new look at the search for extraterrestrial life.

People all over the world claim to have had close encounters with extraterrestrials. Follow the experts as they delve into the possibilities.

Ion propulsion, zero-point gravity, antimatter, gravity manipulation-a glimpse into the unknown of UFO's

Many things have gone on since 1947, and the U.S. government denies it so strongly that its very denials seem to acknowledge the truth.

Hollywood loves controversy about extraterrestrials and "Reel Encounters" provides a look at the earliest depictions.

Antiquity takes us around the Earth to examine the evidence of ancient aliens among us.