Category: UFO Glossary

Among people who believe that UFOs are alien spacecraft, the Roswell incident is considered to be proof not only that aliens exist but also that…

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

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

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

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

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

Whether they have remembered an abduction experience on their own or through hypnosis, people who claim to have been abducted by aliens typically exhibit one…

UFO experts who refer to the “alien autopsy film” are referring to a seventeenminute-long silent black-and-white film supposedly made in 1947 at a Texas military…

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

Many alien abduction stories include descriptions of medical examinations during which the aliens insert a small device somewhere just beneath the abductee’s skin, up the…