UFOs: The Lost Evidence

Evidence reveals the development of secret Nazi weapons not long after an alleged UFO crashed in Germany's Black Forest; UFO experts investigate whether the U.S. government co-opted this technology for its own space and military programs.

Using archival audio recordings, official transcripts and incident reports, UFO researchers investigate what really happened during incredible -- and sometimes life-threatening -- encounters between law enforcement and UFOs.

As long as there have been UFO sightings, there have been claims of alien abduction. This phenomena and the alleged alien implants sometimes left behind are examined in the light of never-before-seen evidence and eyewitness testimony.

Humanity’s rapid technological advances since the mid-20th century have completely transformed the way we live. Are these innovations the result of human effort alone, or have .. show full overview

Investigators reveal the secret history between US Presidents and the UFO phenomenon, from FDR's knowledge about a UFO battle over Los Angeles to JFK's alleged plan to share extraterrestrial secrets with the Russians.

UFOs have been caught on camera across America, yet the government continues to deny the existence of extraterrestrial life. Recent news of the Pentagon's secret UFO program may reveal shocking evidence of what the military has known for decades.

The Royal Air Force has been encountering and even engaging UFOs on a regular basis since World War II, but the British government has continuously denied the sightings. Experts investigate why these UFO facts have been concealed.

The world’s holy sites claim visitation by gods, but shocking new evidence suggests these locations have been deemed sacred because of contact with interstellar travelers in the distant past.

Native American myths steeped in the otherworldly go back thousands of years, but astonishing, new evidence and modern-day UFO sightings have experts rethinking these extraordinary legends and depictions.

UFO experts investigate whether the value, reverence and desire for gold is the result of extraterrestrial landings in the ancient past.