UFO Glossary

Founded in 1952 in Tucson, Arizona, but disbanded in the late 1980s, the Aerial Phenomena Research Organization (APRO) was the ...

Beginning in 1965 hundreds of people have reported being abducted by aliens from another planet, who then subject them to ...

UFO experts who refer to the “alien autopsy film” are referring to a seventeenminute-long silent black-and-white film supposedly made in ...

Many alien abduction stories include descriptions of medical examinations during which the aliens insert a small device somewhere just beneath ...

Those who are skeptical of claims that aliens abduct humans contend that these recollections are hallucinations, fantasies, visions, or dreams ...

Over the centuries scholars have debated how certain large objects and structures, such as the pyramids of ancient Egypt, could ...

Folklorist Thomas E. Bullard is best known for his scholarship on the place of UFO reports in popular culture. In ...

In reports given by people who claim to have seen extraterrestrial beings, there are two types of aliens. The first ...

Frank Allyn Edwards (1908−1967) was a writer, radio announcer, and radio political commentator and was one of the founders of ...

The twentieth century’s obsession with the possibility of intelligent life on other worlds has had a massive impact on the ...

“flying saucer” An expression commonly used to describe an unexplained aerial phenomenon. The words do not always convey a just ...

The term foo fighters is often used to refer to UFOs that are reported by pilots flying at night as ...

So many unidentified flying objects have been sighted over Gulf Breeze, Florida, that the town is considered by enthusiasts to ...

Keyhoe, Donald E. (1897?–ca. 1988) : During the 1950s journalist Donald E. Keyhoe became one of the leading proponents of ...

During the 1950s and 1960s, when science-fiction stories often depicted aliens as having green skin, the phrase little green men ...

The phrase Men in Black refers to mysterious men wearing black suits and sunglasses. Witnesses of UFOs and other seemingly ...

A missing-time episode is the perception on the part of a person that he or she cannot account for a ...

The National Investigations Committee on Aerial Phenomena (NICAP) was once one of the most prominent organizations of UFO researchers and ...

Ufologists and others who believe that aliens regularly visit Earth say there has been physical evidence of these visits. The ...

Begun in 1952, Project Blue Book was the last in a series of U.S. Air Force investigations into the nature ...

Whether they have remembered an abduction experience on their own or through hypnosis, people who claim to have been abducted ...

Named for its leader, physicist H.P. Robertson, who worked for the Central Intelligence Agency (CIA) and the Defense Department, the ...

Among people who believe that UFOs are alien spacecraft, the Roswell incident is considered to be proof not only that ...

Zecharia Sitchin (1920s−2010 ) : Zecharia Sitchin was one of the leading proponents of the ancient astronaut theory, an idea ...

Starchild skull, the In 1999 an oddly shaped skull was displayed at conferences attended by ufologists as proof that alien-human ...

Headed by and named for physicist Edward U. Condon of the University of Colorado, the Condon Committee was a U.S ...

The name the Watchers is sometimes used to refer to extraterrestrials whose motive for visiting Earth is said to be ...

As their name implies, unidentified submarine objects (USOs) are objects seen beneath the sea that defy identification. In some cases ...