An unidentified flying object (UFO), or unidentified anomalous phenomenon (UAP), is any perceived airborne, submerged or transmedium phenomenon that cannot be immediately identified or explained. Upon investigation, most UFOs are identified as known objects or atmospheric phenomena, while a small number remain unexplained.
UFO conspiracy theories are a subset of conspiracy theories which argue that various governments and politicians globally, in particular the United States government, are suppressing evidence that unidentified flying objects are controlled by a non-human intelligence or built using alien technology. Such conspiracy theories usually argue that Earth governments are in communication or cooperation with extraterrestrial visitors despite public disclaimers, and further that some of these theories claim that the governments are explicitly allowing alien abduction.
Ufology, sometimes written UFOlogy, is the investigation of unidentified flying objects (UFOs) by people who believe that they may be of extraordinary origins. While there are instances of government, private, and fringe science investigations of UFOs, ufology is generally regarded by skeptics and science educators as an example of pseudoscience.
Project Blue Book was the code name for the systematic study of unidentified flying objects by the United States Air Force from March 1952 to its termination on December 17, 1969. The project, headquartered at Wright-Patterson Air Force Base, Ohio, was initially directed by Captain Edward J. Ruppelt and followed projects of a similar nature such as Project Sign established in 1947, and Project Grudge in 1949. Project Blue Book had two goals, namely, to determine if UFOs were a threat to national security, and to scientifically analyze UFO-related data.
The extraterrestrial hypothesis (ETH) proposes that some unidentified flying objects (UFOs) are best explained as being physical spacecraft occupied by extraterrestrial intelligence or non-human aliens, or non-occupied alien probes from other planets visiting Earth.
Black triangles are UFOs reported as having a triangular shape and dark color, typically observed at night, described as large, silent, hovering, moving slowly, and displaying pulsating, colored lights which they can turn off.
Jacques Fabrice Vallée is an Internet pioneer, computer scientist, venture capitalist, author, ufologist and astronomer currently residing in San Francisco, California and Paris, France.
The Robertson Panel was a scientific committee which met in January 1953 headed by Howard P. Robertson. The Panel arose from a recommendation to the Intelligence Advisory Committee (IAC) in December 1952 from a Central Intelligence Agency (CIA) review of the U.S. Air Force investigation into unidentified flying objects, Project Blue Book. The CIA review itself was in response to widespread reports of unidentified flying objects, especially in the Washington, D.C. area during the summer of 1952.
The Condon Committee was the informal name of the University of Colorado UFO Project, a group funded by the United States Air Force from 1966 to 1968 at the University of Colorado to study unidentified flying objects under the direction of physicist Edward Condon. The result of its work, formally titled Scientific Study of Unidentified Flying Objects, and known as the Condon Report, appeared in 1968.
Ghost rockets were rocket- or missile-shaped unidentified flying objects sighted in 1946, mostly in Sweden and nearby countries like Finland.
Nick Pope is an English media commentator and former civil servant. Whilst an employee at the British Government's Ministry of Defence (MoD), Pope was responsible, among other duties, for investigating UFO phenomena to determine if they had any defence significance.
Project Condign was a secret unidentified flying object (UFO) study undertaken by the British Government's Defence Intelligence Staff (DIS) between 1997 and 2000.
Project Magnet was an unidentified flying object (UFO) study programme established by Transport Canada in December 1950 under the direction of Wilbert Brockhouse Smith, senior radio engineer for Transport Canada's Broadcast and Measurements Section. It was formally active until mid-1954 and informally active until Smith's death in 1962. Smith eventually concluded that UFOs were probably extraterrestrial in origin and likely operated by manipulation of magnetism.
The interdimensional hypothesis is a proposal that unidentified flying object (UFO) sightings are the result of experiencing other "dimensions" that coexist separately alongside our own in contrast with either the extraterrestrial hypothesis that suggests UFO sightings are caused by visitations from outside the Earth or the psychosocial hypothesis that argues UFO sightings are best explained as psychological or social phenomenon.
David William Clarke is an investigative journalist, reader and lecturer at Sheffield Hallam University, England. He has a lifelong interest in folklore, Fortean phenomena and extraordinary personal experiences. He is frequently consulted by the national and international media on contemporary legend and UFOs and acted as curator for The National Archives UFO project from 2008 to 2013.
The Advanced Aerospace Threat Identification Program (AATIP) was an unclassified but unpublicized investigatory effort funded by the United States Government to study unidentified flying objects (UFOs) or unexplained aerial phenomena (UAP). The program was first made public on December 16, 2017. The program began in 2007, with funding of $22 million over the five years until the available appropriations were ended in 2012. The program began in the U.S. Defense Intelligence Agency.
The All-domain Anomaly Resolution Office (AARO) is an office within the United States Office of the Secretary of Defense that investigates unidentified flying objects (UFOs) and other phenomena in the air, sea, and/or space and/or on land: sometimes referred to as "unidentified aerial phenomena" or "unidentified anomalous phenomena" (UAP). Its first director was physicist Sean Kirkpatrick, and its current director is Jon T. Kosloski who reports to Deputy Defense Secretary Kathleen Hicks.
Preliminary Assessment: Unidentified Aerial Phenomena, also known as the UAP Report and colloquially named the Pentagon UFO Report, is a United States federally mandated assessment, prepared and published by the Office of the Director of National Intelligence on June 25, 2021, summarizing information regarding unidentified aerial phenomena (UAPs) which include unidentified flying objects (UFOs). Substantial public attention had been given to the mandated June 25 report, fueled by statements by former high level officials in the U.S. government, including former president Barack Obama, who stated in June 2021 "...there's footage and records of objects in the skies, that we don't know exactly what they are."
On 17 May 2022, members of the United States House Intelligence Subcommittee on Counterterrorism, Counterintelligence and Counterproliferation held congressional hearings with top military officials to discuss military reports of unexplained aerial phenomena (UAPs). It was the first public congressional hearing into UFO sightings in the US in over 50 years.
Investigation and analysis of reported UFO incidents under the federal government of the United States has taken place under multiple branches and agencies, past and current, since 1947. In spite of decades of interest, there remains no evidence that there are any UFOs with extraordinary origins and, indeed, those identified all have been shown to be natural phenomena, human technology, misapprehensions, delusions, or hoaxes.
