Delve into the aftermath and repercussions of the 1947 Roswell incident, when many believe an alien spacecraft crashed in New Mexico.

Did you know that the office of President of the United States has had a direct involvement with UFOs for over 50 years?

Welcome to the remote, top-secret, and never-before-seen military base Kapustin Yar, where the wreckage from no fewer than eight UFO crash incidents were transported and studied between 1945 and `91.

The military has long sought ways to build an aircraft that can fly undetected. Take a look at secret Air Force plans that may offer an explanation for UFO sightings that began in 1947.

Beginning with its literary origins, trace the path of H.G. Wells' iconic "The War of the World" from riveting magazine serial through the panic broadcast of 1938 and up to present day.

In August 1974, the U.S. military lost track of a mysterious object over Coyame, Mexico, at the same time a civilian plane was reported missing. What followed is the stuff of Hollywood blockbusters.

In September 1977, something amazing appears in the night sky over the Brazilian island of Colares. Though a 500-page report is compiled, it's kept from the public. Examine these mysterious happenings in depth.

Over three nights in December 1980, Air Force personnel stationed at a NATO installation in England witness strange lights in the sky. To this day, the cause remains a mystery.

In April 1897, a mysterious airship crash rocked the small town of Aurora, Texas in a story that has even the most adamant UFO debunkers baffled. Is this the case that finally proves that UFOs are real?

Join us for a detailed examination of the little-known phenomenon of USOs, or "Unidentified Submerged Objects", an advanced type of UFO that can operate just as efficiently in water as in the atmosphere.

Suppose that an alien spacecraft crashed in the desert and we humans recovered it. What could we learn from its engineers?

Cutting-edge animation and live-action recreations help us imagine an alien spacecraft. How many amazing devices and mechanisms are really possible?

Does the Canadian government know more than it's telling about a possible extraterrestrial visitation from the 1960s? Lingering questions prompt researchers to dive back in to a long-closed investigation.