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
Exploring US denials of UFOs and aliens.
A look at the earliest depictions of controversial extraterrestrials and Hollywood.
Travel around the world to examine evidence of ancient aliens in antiquity.
Jeri Ryan
Narrator