Unidentified flying object

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Photograph of an alleged UFO in New Jersey, taken on July 31, 1952

An unidentified flying object, or UFO, in its most general definition, is any apparent anomaly in the sky that is not identifiable as a known object or phenomenon. Such anomalies may later be identified, but depending on the evidence or lack of evidence, such an identification may not be possible generally leaving the anomaly unexplained. While stories of unexplained apparitions have been told since antiquity, the term "UFO" (or "UFOB") was officially created in 1953 by the United States Air Force (USAF) to serve as a catch-all for all such reports. It was stated that a "UFOB" was "any airborne object which by performance, aerodynamic characteristics, or unusual features, does not conform to any presently known aircraft or missile type, or which cannot be positively identified as a familiar object." As originally defined, the term was restricted to those fraction of cases which remained unidentified after investigation, with USAF interest being for potential national security reasons and/or "technical aspects." (See Air Force Regulation 200-2.) During the late 1940s and through the 1950s, UFOs were often referred to popularly as "flying saucers" or "flying discs". The term UFO became more widespread during the 1950s, at first in technical literature, but later in popular use. UFOs garnered considerable interest during the Cold War, an era associated with a heightened concern for national security.

Various studies have concluded that the phenomenon does not represent a threat to national security nor does it contain anything worthy of scientific pursuit (e.g., 1953 CIA Robertson Panel, USAF Project Blue Book, Condon Committee). Culturally, the phenomenon has often been associated with extraterrestrial life or government-related conspiracy theories, and has become a popular theme in fiction.

Terminology

The Oxford English Dictionary defines a UFO as "An unidentified flying object; a 'flying saucer'." The first published book to use the word was authored by Donald E. Keyhoe.[1]

The acronym "UFO" was coined by Captain Edward J. Ruppelt, who headed Project Blue Book, then the USAF's official investigation of UFOs. He wrote, "Obviously the term 'flying saucer' is misleading when applied to objects of every conceivable shape and performance. For this reason the military prefers the more general, if less colorful, name: unidentified flying objects. UFO (pronounced Yoo-foe) for short."[2] Other phrases that were used officially and that predate the UFO acronym include "flying flapjack," "flying disc," "unexplained flying discs," "unidentifiable object," and "flying saucer."[3][4][5]

The phrase "flying saucer" had gained widespread attention after the summer of 1947. On June 24, a civilian pilot named Kenneth Arnold reported seeing nine objects flying in formation near Mount Rainier. Arnold timed the sighting and estimated the speed of discs to be over 1,200 mph (1,931 km/h). At the time, he described the objects' shape as being somewhat disc-like or saucer-like, leading to newspaper accounts of "flying saucers" and "flying discs." (For details, see Kenneth Arnold UFO sighting.)

In popular usage the term UFO came to be used to refer to alien spacecraft.[1] and because of the public and media ridicule associated with the topic, some investigators prefer to use such terms as unidentified aerial phenomenon (or UAP) or anomalous phenomena, as in the title of the National Aviation Reporting Center on Anomalous Phenomena (NARCAP).[6]

Studies

Studies have established that the majority of UFO observations are misidentified conventional objects or natural phenomena—most commonly aircraft, balloons, noctilucent clouds, nacreous clouds, or astronomical objects such as meteors or bright planets with a small percentage even being hoaxes.[note 1] Between 5% and 20% of reported sightings are not explained, and therefore can be classified as unidentified in the strictest sense. While proponents of the extraterrestrial hypothesis (ETH) suggest that these unexplained reports are of alien spacecraft, the null hypothesis cannot be excluded that these reports are simply other more prosaic phenomena that cannot be identified due to lack of complete information or due to the necessary subjectivity of the reports.

While UFOs have been the subject of extensive investigation by various governments and although a few scientists have supported the extraterrestrial hypothesis, almost no scientific papers about UFOs have been published in peer-reviewed journals.[7] There was, in the past, some debate in the scientific community about whether any scientific investigation into UFO sightings is warranted with the general conclusion being that the phenomena was not worthy of serious investigation beyond a cultural artifact.[8][9][10][11][12][13][14]

The void left by the lack of institutional scientific study has given rise to independent researchers and groups, including the National Investigations Committee on Aerial Phenomena (NICAP) in the mid-20th century and, more recently, the Mutual UFO Network (MUFON)[15] and the Center for UFO Studies (CUFOS).[16] The term "Ufology" is used to describe the collective efforts of those who study reports and associated evidence of unidentified flying objects.[17]

UFOs have become a relevant theme in modern culture,[18] and the social phenomena have been the subject of academic research in sociology and psychology.[7]

Early history

Unexplained aerial observations have been reported throughout history. Some were undoubtedly astronomical in nature: comets, bright meteors, one or more of the five planets that can be seen with the naked eye, planetary conjunctions, or atmospheric optical phenomena such as parhelia and lenticular clouds. An example is Halley's Comet, which was recorded first by Chinese astronomers in 240 BC and possibly as early as 467 BC. Such sightings throughout history often were treated as supernatural portents, angels, or other religious omens. Some current-day UFO researchers have noticed similarities between some religious symbols in medieval paintings and UFO reports[19] though the canonical and symbolic character of such images is documented by art historians placing more conventional religious interpretations on such images.[20]

Investigations

UFOs have been subject to investigations over the years that varied widely in scope and scientific rigor. Governments or independent academics in the United States, Canada, the United Kingdom, Japan, Peru, France, Belgium, Sweden, Brazil, Chile, Uruguay, Mexico, Spain, and the Soviet Union are known to have investigated UFO reports at various times.

Among the best known government studies are the ghost rockets investigation by the Swedish military (1946–1947), Project Blue Book, previously Project Sign and Project Grudge, conducted by the USAF from 1947 until 1969, the secret U.S. Army/Air Force Project Twinkle investigation into green fireballs (1948–1951), the secret USAF Project Blue Book Special Report No. 14[34] by the Battelle Memorial Institute, and the Brazilian Air Force's 1977 Operação Prato (Operation Saucer). France has had an ongoing investigation (GEPAN/SEPRA/GEIPAN) within its space agency Centre national d'études spatiales (CNES) since 1977; the government of Uruguay has had a similar investigation since 1989.

Project Sign

Project Sign in 1948 produced a highly classified finding (see Estimate of the Situation) that the best UFO reports probably had an extraterrestrial explanation. A top secret Swedish military opinion given to the USAF in 1948 stated that some of their analysts believed that the 1946 ghost rockets and later flying saucers had extraterrestrial origins. (For document, see Ghost rockets.) In 1954 German rocket scientist Hermann Oberth revealed that an internal West German government investigation, which he headed, had arrived at an extraterrestrial conclusion, but this study was never made public.

Project Magnet

Classified, internal reports by the Canadian Project Magnet in 1952 and 1953 also assigned high probability to extraterrestrial origins. Publicly, however, neither Project Magnet nor later Canadian defense studies ever stated such a conclusion.

Project Grudge

Project Sign was dismantled and became Project Grudge at the end of 1948. Angered by the low quality of investigations by Grudge, the Air Force Director of Intelligence reorganized it as Project Blue Book in late 1951, placing Ruppelt in charge. Blue Book closed down in 1970, using the Condon Committee's negative conclusion as a rationale, thus ending official Air Force UFO investigations. However, a 1969 USAF document, known as the Bolender memo, along with later government documents, revealed that non-public U.S. government UFO investigations continued after 1970. The Bolender memo first stated that "reports of unidentified flying objects that could affect national security ... are not part of the Blue Book system," indicating that more serious UFO incidents already were handled outside the public Blue Book investigation. The memo then added, "reports of UFOs which could affect national security would continue to be handled through the standard Air Force procedures designed for this purpose."[note 2] In addition, in the late 1960s a chapter on UFOs in the Space Sciences course at the U.S. Air Force Academy gave serious consideration to possible extraterrestrial origins. When word of the curriculum became public, the Air Force in 1970 issued a statement to the effect that the book was outdated and that cadets instead were being informed of the Condon Report's negative conclusion.[35]

USAF Regulation 200-2

Air Force Regulation 200-2,[36] issued in 1953 and 1954, defined an Unidentified Flying Object ("UFOB") as "any airborne object which by performance, aerodynamic characteristics, or unusual features, does not conform to any presently known aircraft or missile type, or which cannot be positively identified as a familiar object." The regulation also said UFOBs were to be investigated as a "possible threat to the security of the United States" and "to determine technical aspects involved." The regulation went on to say that "it is permissible to inform news media representatives on UFOB's when the object is positively identified as a familiar object," but added: "For those objects which are not explainable, only the fact that ATIC [Air Technical Intelligence Center] will analyze the data is worthy of release, due to many unknowns involved."[36]

Project Blue Book

J. Allen Hynek, a trained astronomer who served as a scientific advisor for Project Blue Book, was initially skeptical of UFO reports, but eventually came to the conclusion that many of them could not be satisfactorily explained and was highly critical of what he described as "the cavalier disregard by Project Blue Book of the principles of scientific investigation."[37] Leaving government work, he founded the privately funded CUFOS, to whose work he devoted the rest of his life. Other private groups studying the phenomenon include the MUFON, a grass roots organization whose investigator's handbooks go into great detail on the documentation of alleged UFO sightings.

Like Hynek, Jacques Vallée, a scientist and prominent UFO researcher, has pointed to what he believes is the scientific deficiency of most UFO research, including government studies. He complains of the mythology and cultism often associated with the phenomenon, but alleges that several hundred professional scientists—a group both he and Hynek have termed "the invisible college"—continue to study UFOs in private.[18]

Scientific studies

The study of UFOs has received little support in mainstream scientific literature. Official studies ended in the U.S. in December 1969, following the statement by the government scientist Edward Condon that further study of UFOs could not be justified on grounds of scientific advancement.[10][38] The Condon Report and its conclusions were endorsed by the National Academy of Scientists, of which Condon was a member. On the other hand, a scientific review by the UFO subcommittee of the American Institute of Aeronautics and Astronautics (AIAA) disagreed with Condon's conclusion, noting that at least 30 percent of the cases studied remained unexplained and that scientific benefit might be gained by continued study.

Critics argue that all UFO evidence is anecdotal[39] and can be explained as prosaic natural phenomena. Defenders of UFO research counter that knowledge of observational data, other than what is reported in the popular media, is limited in the scientific community and that further study is needed.[18][40]

No official government investigation has ever publicly concluded that UFOs are indisputably real, physical objects, extraterrestrial in origin, or of concern to national defense. These same negative conclusions also have been found in studies that were highly classified for many years, such as the UK's Flying Saucer Working Party, Project Condign, the U.S. CIA-sponsored Robertson Panel, the U.S. military investigation into the green fireballs from 1948 to 1951, and the Battelle Memorial Institute study for the USAF from 1952 to 1955 (Project Blue Book Special Report No. 14).

Some public government reports have acknowledged the possibility of physical reality of UFOs, but have stopped short of proposing extraterrestrial origins, though not dismissing the possibility entirely. Examples are the Belgian military investigation into large triangles over their airspace in 1989–1991 and the 2009 Uruguayan Air Force study conclusion (see below).

Some private studies have been neutral in their conclusions, but argued that the inexplicable core cases call for continued scientific study. Examples are the Sturrock panel study of 1998 and the 1970 AIAA review of the Condon Report.

United States

U.S. investigations into UFOs include:

Thousands of documents released under FOIA also indicate that many U.S. intelligence agencies collected (and still collect) information on UFOs. These agencies include the Defense Intelligence Agency (DIA), FBI,[5] CIA, National Security Agency (NSA), as well as military intelligence agencies of the Army and U.S. Navy, in addition to the Air Force.[note 3]

The investigation of UFOs has also attracted many civilians, who in the U.S formed research groups such as NICAP (active 1956–1980), Aerial Phenomena Research Organization (APRO) (active 1952–1988), MUFON (active 1969–), and CUFOS (active 1973–).

In November 2011, the White House released an official response to two petitions asking the U.S. government to acknowledge formally that aliens have visited this planet and to disclose any intentional withholding of government interactions with extraterrestrial beings. According to the response, "The U.S. government has no evidence that any life exists outside our planet, or that an extraterrestrial presence has contacted or engaged any member of the human race."[43][44] Also, according to the response, there is "no credible information to suggest that any evidence is being hidden from the public's eye."[43][44] The response further noted that efforts, like SETI and NASA's Kepler space telescope and Mars Science Laboratory, continue looking for signs of life. The response noted "odds are pretty high" that there may be life on other planets but "the odds of us making contact with any of them—especially any intelligent ones—are extremely small, given the distances involved."[43][44]

Post-1947 sightings

Following the large U.S. surge in sightings in June and early July 1947, on July 9, 1947, United States Army Air Forces (USAAF) intelligence, in cooperation with the FBI,[5] began a formal investigation into selected sightings with characteristics that could not be immediately rationalized, which included Kenneth Arnold's and that of the United Airlines crew. The USAAF used "all of its top scientists" to determine whether "such a phenomenon could, in fact, occur." The research was "being conducted with the thought that the flying objects might be a celestial phenomenon," or that "they might be a foreign body mechanically devised and controlled."[45] Three weeks later in a preliminary defense estimate, the air force investigation decided that, "This 'flying saucer' situation is not all imaginary or seeing too much in some natural phenomenon. Something is really flying around."[46]

A further review by the intelligence and technical divisions of the Air Materiel Command at Wright Field reached the same conclusion. It reported that "the phenomenon is something real and not visionary or fictitious," that there were objects in the shape of a disc, metallic in appearance, and as big as man-made aircraft. They were characterized by "extreme rates of climb [and] maneuverability," general lack of noise, absence of trail, occasional formation flying, and "evasive" behavior "when sighted or contacted by friendly aircraft and radar," suggesting a controlled craft. It was therefore recommended in late September 1947 that an official Air Force investigation be set up to investigate the phenomenon. It was also recommended that other government agencies should assist in the investigation.[note 4]

Project Sign

This led to the creation of the Air Force's Project Sign at the end of 1947, one of the earliest government studies to come to a secret extraterrestrial conclusion. In August 1948, Sign investigators wrote a top-secret intelligence estimate to that effect, but the Air Force Chief of Staff Hoyt Vandenberg ordered it destroyed. The existence of this suppressed report was revealed by several insiders who had read it, such as astronomer and USAF consultant J. Allen Hynek and Capt. Edward J. Ruppelt, the first head of the USAF's Project Blue Book.[47]

Another highly classified U.S. study was conducted by the CIA's Office of Scientific Investigation (OS/I) in the latter half of 1952 in response to orders from the National Security Council (NSC). This study concluded UFOs were real physical objects of potential threat to national security. One OS/I memo to the CIA Director (DCI) in December read:

the reports of incidents convince us that there is something going on that must have immediate attention ... Sightings of unexplained objects at great altitudes and traveling at high speeds in the vicinity of major U.S. defense installations are of such a nature that they are not attributable to natural phenomena or any known types of aerial vehicles.

The matter was considered so urgent that OS/I drafted a memorandum from the DCI to the NSC proposing that the NSC establish an investigation of UFOs as a priority project throughout the intelligence and the defense research and development community. It also urged the DCI to establish an external research project of top-level scientists, now known as the Robertson Panel to analyze the problem of UFOs. The OS/I investigation was called off after the Robertson Panel's negative conclusions in January 1953.[48]

The Condon Committee

A public research effort conducted by the Condon Committee for the USAF, which arrived at a negative conclusion in 1968, marked the end of the U.S. government's official investigation of UFOs, though various government intelligence agencies continue unofficially to investigate or monitor the situation.[note 5]

Controversy has surrounded the Condon Report, both before and after it was released. It has been observed that the report was "harshly criticized by numerous scientists, particularly at the powerful AIAA ... [which] recommended moderate, but continuous scientific work on UFOs."[10] In an address to the AAAS, James E. McDonald stated that he believed science had failed to mount adequate studies of the problem and criticized the Condon Report and earlier studies by the USAF as scientifically deficient. He also questioned the basis for Condon's conclusions[49] and argued that the reports of UFOs have been "laughed out of scientific court."[9] J. Allen Hynek, an astronomer who worked as a USAF consultant from 1948, sharply criticized the Condon Committee Report and later wrote two nontechnical books that set forth the case for continuing to investigate UFO reports.

Ruppelt recounted his experiences with Project Blue Book, a USAF investigation that preceded Condon's.[50]

Notable cases

Canada

In Canada, the Department of National Defence has dealt with reports, sightings and investigations of UFOs across Canada. In addition to conducting investigations into crop circles in Duhamel, Alberta, it still considers "unsolved" the Falcon Lake incident in Manitoba and the Shag Harbour UFO incident in Nova Scotia.[51]

Early Canadian studies included Project Magnet (1950–1954) and Project Second Storey (1952–1954), supported by the Defence Research Board. These studies were headed by Canadian Department of Transport radio engineer Wilbert B. Smith, who later publicly supported extraterrestrial origins.

In the Shag Harbour UFO incident, a large object sequentially flashing lights was seen and heard to dive into the water by multiple witnesses. The Royal Canadian Mounted Police and many local residents also witnessed a light floating on the water immediately afterward, and a large patch of unusual yellow foam when a water search was initiated. Multiple government agencies were eventually involved in trying to identify the crashed object and searching for it. Canadian naval divers later purportedly found no wreckage. In official documents, the object was called a "UFO" because no conventional explanation for the crashed object was discovered. Around the same time, both the Canadian and U.S. military were involved in another UFO-related search at Shelburne, Nova Scotia, approximately 30 miles (48 km) from Shag Harbour.

France

On March 2007, the French space agency CNES published an archive of UFO sightings and other phenomena online.[52]

French studies include GEPAN/SEPRA/GEIPAN (1977–), within CNES (French space agency), the longest ongoing government-sponsored investigation. About 22% of 6000 cases studied remain unexplained.[53] The official opinion of GEPAN/SEPRA/GEIPAN has been neutral, stating on their FAQ page that their mission is fact-finding for the scientific community, not rendering an opinion. They add they can neither prove nor disprove the Exterrestrial Hypothesis (ETH), but their Steering Committee's clear position is that they cannot discard the possibility that some fraction of the very strange 22% of unexplained cases might be due to distant and advanced civilizations.[54] Possibly their bias may be indicated by their use of the terms "PAN" (French) or "UAP" (English equivalent) for "Unidentified Aerospace Phenomenon" (whereas "UAP" as normally used by English organizations stands for "Unidentified Aerial Phenomenon," a more neutral term). In addition, the three heads of the studies have gone on record in stating that UFOs were real physical flying machines beyond our knowledge or that the best explanation for the most inexplicable cases was an extraterrestrial one.[55][56][57]

In 2008, Michel Scheller, president of the Association Aéronautique et Astronautique de France (3AF), created the Sigma Commission. Its purpose was to investigate UFO phenomenon worldwide.[58] A progress report published in May 2010 stated that the central hypothesis proposed by the COMETA report is perfectly credible.[59] In December 2012, the final report of the Sigma Commission was submitted to Scheller. Following the submission of the final report, the Sigma2 Commission is to be formed with a mandate to continue the scientific investigation of UFO phenomenon.[60][61]

The most notable cases of UFO sightings in France include the Valensole UFO incident in 1965, and the Trans-en-Provence Case in 1981.

Italy

According to some Italian ufologists, the first documented case of a UFO in Italy dates back to April 11, 1933, to Varese. Documents of the time show that an alleged UFO crashed or landed near Vergiate. Following this, Benito Mussolini created a secret group to look at it.[62][63]

Alleged UFO sightings gradually increased since the war, peaking in 1978 and 2005. Notable cases include:

The total number of sightings since 1947 are 18,500, of which 90% are identifiable.[70][verification needed]

United Kingdom

The UK's Flying Saucer Working Party published its final report in June 1951, which remained secret for over 50 years. The Working Party concluded that all UFO sightings could be explained as misidentifications of ordinary objects or phenomena, optical illusions, psychological misperceptions/aberrations, or hoaxes. The report stated: "We accordingly recommend very strongly that no further investigation of reported mysterious aerial phenomena be undertaken, unless and until some material evidence becomes available."[71]

Eight file collections on UFO sightings, dating from 1978 to 1987, were first released on May 14, 2008, to The National Archives by the Ministry of Defence (MoD).[72] Although kept secret from the public for many years, most of the files have low levels of classification and none are classified Top Secret. 200 files are set to be made public by 2012. The files are correspondence from the public sent to the British government and officials, such as the MoD and Margaret Thatcher. The MoD released the files under the Freedom of Information Act due to requests from researchers.[73] These files include, but are not limited to, UFOs over Liverpool and the Waterloo Bridge in London.[74]

On October 20, 2008, more UFO files were released. One case released detailed that in 1991 an Alitalia passenger aircraft was approaching London Heathrow Airport when the pilots saw what they described as a "cruise missile" fly extremely close to the cockpit. The pilots believed that a collision was imminent. UFO expert David Clarke says that this is one of the most convincing cases for a UFO he has come across.[75]

A secret study of UFOs was undertaken for the Ministry of Defence between 1996 and 2000 and was code-named Project Condign. The resulting report, titled "Unidentified Aerial Phenomena in the UK Defence Region," was publicly released in 2006, but the identity and credentials of whomever constituted Project Condign remains classified. The report confirmed earlier findings that the main causes of UFO sightings are misidentification of man-made and natural objects. The report noted: "No artefacts of unknown or unexplained origin have been reported or handed to the UK authorities, despite thousands of Unidentified Aerial Phenomena reports. There are no SIGINT, ELINT or radiation measurements and little useful video or still IMINT." It concluded: "There is no evidence that any UAP, seen in the UKADR [UK Air Defence Region], are incursions by air-objects of any intelligent (extraterrestrial or foreign) origin, or that they represent any hostile intent." A little-discussed conclusion of the report was that novel meteorological plasma phenomenon akin to ball lightning are responsible for "the majority, if not all" of otherwise inexplicable sightings, especially reports of black triangle UFOs.[76]

On December 1, 2009, the Ministry of Defence quietly closed down its UFO investigations unit. The unit's hotline and email address were suspended by the MoD on that date. The MoD said there was no value in continuing to receive and investigate sightings in a release, stating

in over fifty years, no UFO report has revealed any evidence of a potential threat to the United Kingdom. The MoD has no specific capability for identifying the nature of such sightings. There is no Defence benefit in such investigation and it would be an inappropriate use of defence resources. Furthermore, responding to reported UFO sightings diverts MoD resources from tasks that are relevant to Defence."

The Guardian reported that the MoD claimed the closure would save the Ministry around £50,000 a year. The MoD said that it would continue to release UFO files to the public through The National Archives.[77]

Notable cases

Uruguay

The Uruguayan Air Force has conducted UFO investigations since 1989 and reportedly analyzed 2,100 cases of which they regard approximately 2% as lacking explanation.[81]

Astronomer reports

The USAF's Project Blue Book files indicate that approximately 1%[82] of all unknown reports came from amateur and professional astronomers or other users of telescopes (such as missile trackers or surveyors). In 1952, astronomer J. Allen Hynek, then a consultant to Blue Book, conducted a small survey of 45 fellow professional astronomers. Five reported UFO sightings (about 11%). In the 1970s, astrophysicist Peter A. Sturrock conducted two large surveys of the AIAA and American Astronomical Society (AAS). About 5% of the members polled indicated that they had had UFO sightings.

Astronomer Clyde Tombaugh, who admitted to six UFO sightings, including three green fireballs, supported the Extraterrestrial hypothesis for UFOs and stated he thought scientists who dismissed it without study were being "unscientific." Another astronomer was Lincoln LaPaz, who had headed the Air Force's investigation into the green fireballs and other UFO phenomena in New Mexico. LaPaz reported two personal sightings, one of a green fireball, the other of an anomalous disc-like object. (Both Tombaugh and LaPaz were part of Hynek's 1952 survey.) Hynek himself took two photos through the window of a commercial airliner of a disc-like object that seemed to pace his aircraft.[83]

In 1980, a survey of 1800 members of various amateur astronomer associations by Gert Helb and Hynek for CUFOS found that 24% responded "yes" to the question "Have you ever observed an object which resisted your most exhaustive efforts at identification?"[84]

Recent Reporting Activity

MUFON reports that UFO sightings to their offices have increased by 67% in the previous three years as of 2011. According to MUFON international director Clifford Clift in 2011, "Over the past year, we've been averaging 500 sighting reports a month, compared to about 300 three years ago [67 percent],".[85][86]

According to the annual survey of reports conducted by Canadian based UFO research group Ufology Research, reported UFO sightings doubled in Canada from 2011-2012.[87][88]

In 2013 the Peruvian government's Departamento de Investigación de Fenómenos Aéreos Anómalos (Anomalous Aerial Phenomena Research Department), or “DIFAA”, was officially reactivated due to an increase in reported sightings. According to Colonel Julio Vucetich, head of the air force's aerospace interests division who himself claims to have seen an "anomalous aerial object", "On a personal basis, it's evident to me that we are not alone in this world or universe.".[89][90]

In contrast, according to the UK-based Association for the Scientific Study of Anomalous Phenomena (ASSAP), reports of sightings in Britain to their office have declined by 96% since 1988.[91][92]

Identification of UFOs

Fata Morgana, a type of mirage in which objects located below the astronomical horizon appear to be hovering in the sky just above the horizon, may be responsible for some UFO sightings. (Here, the shape floating above the horizon is the reflected image of a boat.) Fata Morgana can also distort the appearance of distant objects, sometimes making them unrecognizable[93]
Lenticular clouds have very rarely been reported as UFOs due to their peculiar shape

Studies show that after careful investigation, the majority of UFOs can be identified as ordinary objects or phenomena. The most commonly found identified sources of UFO reports are:

A 1952–1955 study by the Battelle Memorial Institute for the USAF included these categories as well as a "psychological" one. However, the scientific analysts were unable to come up with prosaic explanations for 22% of the 3,200 cases they examined and 33% of what were considered the best cases remained unexplained, double the number of the worst cases. (For the full statistical breakdown, see Identification studies of UFOs.) Of the 69% identifieds, 38% were deemed definitely explained while 31% were thought to be "questionable." About 9% of the cases were considered to have insufficient information to make a determination.

The ongoing official French government UFO investigation (GEPAN/SEPRA/GEIPAN), run within the French space agency CNES starting in 1977, has scientifically investigated about 6,000 cases and similarly found that 22% defied any rational explanation, 37% were deemed definitely or likely identifiable, while 41% lacked sufficient information for classification.[53]

An individual 1979 study by CUFOS researcher Allan Hendry found, as did other investigations, that only a small percentage of cases he investigated were hoaxes (<1 %) and that most sightings were actually honest misidentifications of prosaic phenomena. Hendry attributed most of these to inexperience or misperception.[94] However, Hendry's figure for unidentified cases was considerably lower than many other UFO studies such as Project Blue Book, GEIPAN, or the Condon Report that have found rates of unidentified cases ranging from 6% to 30%. Hendry found that 89% of the cases he studied had a clear prosaic explanation, and he discarded a further 3% due to unreliable or contradictory witnesses or insufficient information. The remaining 9% of reports could not definitively be explained by prosaic phenomena, although he felt that a further 7% could possibly be explained, leaving only the very best 1.5% without plausible explanation.

Claims by military, government, and aviation personnel

Since 2001 there have been calls for greater openness on the part of the government by various persons. In May 2001, a press conference was held at the National Press Club in Washington, D.C., by an organization called the Disclosure Project, featuring twenty persons including retired Air Force and FAA personnel, intelligence officers and an air traffic controller.[95][96][97] [98] [99] [100] [101] They all gave a brief account of what they knew or had witnessed, and stated that they would be willing to testify to what they had said under oath to a Congressional committee. According to a 2002 report in the Oregon Daily Emerald, Disclosure Project founder Steven M. Greer has gathered 120 hours of testimony from various government officials on the topic of UFO's, including astronaut Gordon Cooper and a Brigadier General.[102]

In 2007, former Arizona governor Fife Symington came forward and admitted that he had seen "a massive, delta-shaped craft silently navigate over Squaw Peak, a mountain range in Phoenix, Arizona" in 1997.[103]

On September 27, 2010, a group of six former USAF officers and one former enlisted Air Force man held a press conference at the National Press Club in Washington, D.C., on the theme "U.S. Nuclear Weapons Have Been Compromised by Unidentified Aerial Objects."[104] They told how they had witnessed UFOs hovering near missile sites and even disarming the missiles.

From April 29 to May 3, 2013, the Paradigm Research Group held the "Citizen Hearing on Disclosure" at the National Press Club. The group paid former U.S. Senator Mike Gravel and former Representatives Carolyn Cheeks Kilpatrick, Roscoe Bartlett, Merrill Cook, Darlene Hooley, and Lynn Woolsey $20,000 each to hear testimony from a panel of researchers which included witnesses from military, agency, and political backgrounds.[105][106]

Extraterrestrial hypothesis

While technically a UFO refers to any unidentified flying object, in modern popular culture the term UFO has generally become synonymous with alien spacecraft;[107] however, the term ETV (ExtraTerrestrial Vehicle) is sometimes used to separate this explanation of UFOs from totally earthbound explanations.[108]

Proponents argue that because these objects appear to be technological and not natural phenomena and are alleged to display flight characteristics or have shapes seemingly unknown to conventional technology, the conclusion is that they must not be from Earth.[109][110][111][112] Though UFO sightings have occurred throughout recorded history, modern interest in them dates from World War II (see foo fighter), further fueled in the late 1940s by Kenneth Arnold's report of a close encounter, which led to coining of the term flying saucer, and the Roswell UFO incident. Since then governments have investigated UFO reports, often from a military perspective, and UFO researchers have investigated, written about, and created organizations devoted to the subject. One such investigation, the UK's Project Condign, made public in 2006, attributed unaccountable UFO sightings to a hitherto unknown and scientifically unexplained "plasma field." It also concluded that Russian, former Soviet Republics, and Chinese authorities had made a co-ordinated effort to understand the UFO phenomenon and that military organizations, particularly in Russia, had done "considerably more work (than is evident from open sources)" on military applications stemming from their UFO research. The report also noted that "several aircraft have been destroyed and at least four pilots have been killed 'chasing UFOs'."[113]

Associated claims

Besides anecdotal visual sightings, reports sometimes include claims of other kinds of evidence, including cases studied by the military and various government agencies of different countries (such as Project Blue Book, the Condon Committee, the French GEPAN/SEPRA, and Uruguay's current Air Force study).

A comprehensive scientific review of cases where physical evidence was available was carried out by the 1998 Sturrock panel, with specific examples of many of the categories listed below.[114][115][116]

Reverse engineering

Attempts have been made to reverse engineer the possible physics behind UFOs through analysis of both eyewitness reports and the physical evidence, on the assumption that they are powered vehicles. Examples are former NASA and nuclear engineer James McCampbell in his book Ufology, NACA/NASA engineer Paul R. Hill in his book Unconventional Flying Objects, and German rocketry pioneer Hermann Oberth. Among subjects tackled by McCampbell, Hill, and Oberth was the question of how UFOs can fly at supersonic speeds without creating a sonic boom. McCampbell's proposed solution is microwave plasma parting the air in front of the craft. In contrast, Hill and Oberth believed UFOs utilize an as-yet-unknown anti-gravity field to accomplish the same thing as well as provide propulsion and protection of occupants from the effects of high acceleration.[note 6]

Ufology

Photograph of "an unusual atmospheric occurrence observed over Sri Lanka," forwarded to the UK Ministry of Defence by RAF Fylingdales, 2004

Ufology is a neologism describing the collective efforts of those who study UFO reports and associated evidence.

Researchers

Sightings

Organizations

Categorization

Some ufologists recommend that observations be classified according to the features of the phenomenon or object that are reported or recorded. Typical categories include:

Popular UFO classification systems include the Hynek system, created by J. Allen Hynek, and the Vallée system, created by Jacques Vallée.

Hynek's system involves dividing the sighted object by appearance, subdivided further into the type of "close encounter" (a term from which the film director Steven Spielberg derived the title of his 1977 UFO movie, Close Encounters of the Third Kind).

Jacques Vallée's system classifies UFOs into five broad types, each with from three to five subtypes that vary according to type.

Scientific skepticism

A scientifically skeptical group that has for many years offered critical analysis of UFO claims is the Committee for Skeptical Inquiry (CSI).

Responding to local beliefs that "extraterrestrial beings" in UFOs were responsible for crop circles appearing in Indonesia, the government and the National Institute of Aeronautics and Space (LAPAN) described them as "man-made." Thomas Djamaluddin, research professor of astronomy and astrophysics at Lapan stated: "We have come to agree that this 'thing' cannot be scientifically proven. Scientists have put UFOs in the category of pseudoscience."[122]

Conspiracy theories

UFOs are sometimes an element of conspiracy theories in which governments are allegedly intentionally "covering up" the existence of aliens by removing physical evidence of their presence, or even collaborating with extraterrestrial beings. There are many versions of this story; some are exclusive, while others overlap with various other conspiracy theories.

In the U.S., an opinion poll conducted in 1997 suggested that 80% of Americans believed the U.S. government was withholding such information.[123][124] Various notables have also expressed such views. Some examples are astronauts Gordon Cooper and Edgar Mitchell, Senator Barry Goldwater, Vice Admiral Roscoe H. Hillenkoetter (the first CIA director), Lord Hill-Norton (former British Chief of Defense Staff and NATO head), the 1999 French COMETA study by various French generals and aerospace experts, and Yves Sillard (former director of CNES, new director of French UFO research organization GEIPAN).[52]

It has also been suggested by a few paranormal authors that all or most human technology and culture is based on extraterrestrial contact. (See also ancient astronauts.)

Famous hoaxes

In popular culture

A sculpture commemorating UFOs in Tenjo, Colombia, a location that is speculated to be frequently visited by many UFOs and causing many unexplained paranormal activities to occur.

UFOs constitute a widespread international cultural phenomenon of the last 60 years. Gallup Polls rank UFOs near the top of lists for subjects of widespread recognition. In 1973, a survey found that 95 percent of the public reported having heard of UFOs, whereas only 92 percent had heard of U.S. President Gerald Ford in a 1977 poll taken just nine months after he left the White House.[128][129] A 1996 Gallup Poll reported that 71 percent of the United States population believed that the U.S. government was covering up information regarding UFOs. A 2002 Roper Poll for the Sci-Fi Channel found similar results, but with more people believing that UFOs are extraterrestrial craft. In that latest poll, 56 percent thought UFOs were real craft and 48 percent that aliens had visited the Earth. Again, about 70 percent felt the government was not sharing everything it knew about UFOs or extraterrestrial life. In the film Yellow Submarine, Ringo states that the yellow submarine that is following him "must be one of them unidentified flying cupcakes."[130][131] Another effect of the flying saucer type of UFO sightings has been Earth-made flying saucer craft in space fiction, for example the United Planets Cruiser C57D in Forbidden Planet (1956), the Jupiter 2 in Lost in Space, and the saucer section of the USS Enterprise in Star Trek, and many others.

UFOs and extraterrestrials have been featured in many movies.

See also

Notes

  1. ^ For example, the USAF's Project Blue Book concluded that less than 2 % of reported UFOs were "psychological" or hoaxes; Allan Hendry's study for CUFOS had less than 1 %.
  2. ^ For example, current USAF general reporting procedures are in Air Force Instruction (AFI)10-206. Section 5.7.3 (p. 64) lists sightings of "unidentified flying objects" and "aircraft of unconventional design" as separate categories from potentially hostile but conventional, unidentified aircraft, missiles, surface vessels, or submarines. Additionally, "unidentified objects" detected by missile warning systems, creating a potential risk of nuclear war, are covered by Rule 5E (p.35).
  3. ^ Many of these documents are now online at the FOIA websites of these agencies such as the FBI FOIA site at the Wayback Machine (archived May 24, 2008), as well as private websites such as The Black Vault, which has an archive of several thousand U.S. government UFO-related documents from the USAF, Army, CIA, DIA, DOD, and NSA.
  4. ^ The so-called Twining memo of Sept. 23, 1947, by future USAF Chief of Staff, General Nathan Twining, specifically recommended intelligence cooperation with the Army, Navy, Atomic Energy Commission, the Defense Department's Joint Research and Development Board, Air Force Scientific Advisory Board, National Advisory Committee for Aeronautics (NACA), Project RAND, and the Nuclear Energy for the Propulsion of Aircraft (NEPA) project.
  5. ^ See, e.g., the 1976 Tehran UFO incident where a Defense Intelligence Agency report on the event had a distribution list that included the White House, Secretary of State, Joint Chiefs of Staff, National Security Agency (NSA), and Central Intelligence Agency (CIA). Several thousand UFO-related pages of more recent vintage from the CIA, NSA, DIA, and other agencies have also been released and can be viewed online.[1]
  6. ^ Oberth's UFO antigravity opinion as to propulsion and atmospheric air flow control also quoted by Donald Keyhoe in his 1955 book Flying Saucer Conspiracy.

References

  1. ^ a b Keyhoe 1953
  2. ^ Ruppelt 1956, Chapter 1: "Project Blue Book and the UFO Story"
  3. ^ "UFO Part 1 of 16". The Vault. Washington, D.C.: Federal Bureau of Investigation. pp. 1–20. Retrieved 2013-05-16. 
  4. ^ Aldrich, Lynn C. (July 14, 1947). "Unidentifiable objects, Williams Field; Chandler, Arizona" (Memorandum). Project Blue Book Archive. NARA-PBB1-922. Retrieved 2013-05-16. 
  5. ^ a b c Contreras, Russell (March 29, 2013). "FBI 'flying saucers' NM memo bureau's most viewed". Associated Press. Retrieved 2013-04-01. 
  6. ^ Roe, Ted. "On The Radar". NARCAP.org. National Aviation Reporting Center on Anomalous Phenomena (NARCAP). Archived from the original on 2011-07-27. Retrieved 2013-09-06.  See May 17, 2013, NARCAP.org news release: "'Aliens', 'Alien Spaceships' & Government Coverups" on Facebook.
  7. ^ a b Cross, Anne (March 2004). "The Flexibility of Scientific Rhetoric: A Case Study of UFO Researchers". Qualitative Sociology (Springer) 27 (1): 3–34. doi:10.1023/B:QUAS.0000015542.28438.41. ISSN 0162-0436. 
  8. ^ Sagan & Page 1996
  9. ^ a b McDonald, James E. (July 29, 1968). "Statement on Unidentified Flying Objects: Submitted to the House Committee on Science and Astronautics at July 29, 1968, Symposium on Unidentified Flying Objects, Rayburn Bldg., Washington, D.C., by James E. McDonald" (PDF). Retrieved 2013-09-06. 
  10. ^ a b c "COMETA Report". Seattle, WA: ufoevidence.org. Retrieved 2013-07-13. 
  11. ^ McCarthy 1975
  12. ^ Salisbury, David F. (July 1, 1998). "UFO study causes media sensation: 7/1/98". Stanford Report. Stanford, CA: Stanford University. Retrieved 2013-05-16. 
  13. ^ Menzel & Taves 1977
  14. ^ Hough, Andrew (April 13, 2010). "UFO studies should be 'legitimate university subject', claims American professor". The Daily Telegraph (London: Telegraph Media Group). Retrieved 2013-07-13. 
  15. ^ "Mutual UFO Network". MUFON.com. Cincinnati, OH: Mutual UFO Network, Inc. Retrieved 2013-07-13. 
  16. ^ "Center for UFO Studies". CUFOS.org. Chicago: Center for UFO Studies. Retrieved 2013-07-13. 
  17. ^ Speigel, Lee (August 26, 2011). "UFO Sightings Increase 67 Percent In 3 Years, History Channel Investigates Unexplained Aerial Phenomena". The Huffington Post (AOL). Retrieved 2013-07-13. 
  18. ^ a b c Vallée 2008
  19. ^ Giordano, Daniela (November 13, 2006). "Do UFOs Exist in the History of Arts?". American Chronicle. Ultio, LLC. Archived from the original on 2012-08-19. Retrieved 2013-09-06. 
  20. ^ Cuoghi, Diego (2004). "The Art of Imagining UFOs". Skeptic (The Skeptics Society) 11 (1). Retrieved 2013-09-06. 
  21. ^ Booth, B J (December 8, 2008). "Before the Wright Brothers ... There Were UFOs". American Chronicle. Ultio, LLC. Archived from the original on 2012-08-19. Retrieved 2013-09-06. 
  22. ^ Keel 1996, pp. 29–31
  23. ^ New York Herald. April 12, 1897. 
  24. ^ "Navy Officer Sees Meteors: They Were Red Ones, the Largest About Six Suns Big" (PDF). The New York Times. March 9, 1904. Retrieved 2013-09-06. 
  25. ^ "Saw Big Meteors: The Largest Had an Apparent Area of About Six Suns". Richland Shield and Banner (Mansfield, OH). March 10, 1904. p. 1. Retrieved 2013-09-06. 
  26. ^ Maccabee, Bruce. "Even More Remarkable". Dr. Bruce Maccabee UFO Research Website. Retrieved 2013-09-06.  Analysis, with original log entries of sighting.
  27. ^ Maccabee, Bruce. "Another Failed Explanation for the Kenneth Arnold Sighting". NICAP.org. Washington, D.C.: National Investigations Committee On Aerial Phenomena (NICAP). Archived from the original on 2005-01-04. Retrieved 2013-09-06.  Maccabee summary of sighting with log quotes.
  28. ^ Weinstein 2001
  29. ^ Roerich, Nicholas (2001) [Originally published 1929; New York: Frederick A. Stokes Company]. Altai-Himalaya: A Travel Diary. Kempton, IL: Adventures Unlimited Press. pp. 361–362. ISBN 0-932-81393-3. LCCN 29011922. OCLC 50196530. 
  30. ^ Roerich, Nicholas (1990) [Originally published 1930; New York: Frederick A. Stokes Company]. Shambhala: In Search of the New Era. Frontispiece in colors by Svetoslav Roerich. Rochester, VT: Inner Traditions International, Ltd. pp. 6–7, 244. ISBN 0-89281-305-9. LCCN 30009209. OCLC 21332745. 
  31. ^ "Foo-Fighter". Time. January 15, 1945. Retrieved 2013-05-16. 
  32. ^ Stevens 2003, p. 69
  33. ^ Swords & Powell 2012, p. 63
  34. ^ "Project Blue Book Special Report #14". Internet Archive. United States Air Force. Retrieved 2013-09-07. 
  35. ^ "Introductory Space Science". CUFON.org. West Jacksonville, FL: Computer UFO Network (CUFON). Retrieved 2013-05-16.  Air Force Academy UFO material.
  36. ^ a b "AFD-070703-004.pdf" (PDF). Air Force Freedom of Information Act. United States Air Force. Retrieved 2013-09-07. 
  37. ^ Hynek 1972, p. 76
  38. ^ Swords & Powell 2012, pp. 306–332
  39. ^ Sagan, Carl (1995). The Demon-Haunted World: Science as a Candle in the Dark (1st ed.). New York: Random House. ISBN 0-394-53512-X. LCCN 95034076. OCLC 779687822. 
  40. ^ Friedman 2008
  41. ^ Good 1988, p. 484
  42. ^ Kocher 1968
  43. ^ a b c Larson, Phil (November 5, 2011). "Searching for ET, But No Evidence Yet". White House. Retrieved 2013-09-06. 
  44. ^ a b c Atkinson, Nancy (November 5, 2011). "No Alien Visits or UFO Coverups, White House Says". Universe Today (Courtenay, B.C.). Retrieved 2011-11-06. 
  45. ^ "Federal Bureau of Investigation FOIA Documents - Unidentified Flying Objects". Project Gutenberg. Retrieved 2013-09-07.  Internal FBI memo from E. G. Fitch to D. M. Ladd concerning a request by General George F. Schulgen, Chief of the Requirements Intelligence Branch of Army Air Corps Intelligence, for the FBI to help with their investigation of UFO reports.
  46. ^ Hall & Connors 1998, p. 83
  47. ^ Ruppelt 1956, Chapter 3: "The Classics"
  48. ^ Haines, Gerald K. (1997). "CIA's Role in the Study of UFOs, 1947-90". Central Intelligence Agency. OCLC 713270503. Retrieved 2013-07-13. 
  49. ^ McDonald, James E. (1974) [Originally published 1972]. "Science in Default: Twenty-Two Years of Inadequate UFO Investigations". In Sagan, Carl; Page, Thornton. UFO's: A Scientific Debate. American Association for the Advancement of Science, 134th Meeting (Reprint ed.). New York: W. W. Norton & Company. ISBN 978-0-393-00739-8. LCCN 72004572. OCLC 934695. Retrieved March 30, 2011. 
  50. ^ Ruppelt 1956
  51. ^ "Canada's UFOs: The Search for the Unknown" (Virtual museum). Ottawa: Library and Archives Canada. Retrieved 2013-09-08. 
  52. ^ a b "GEIPAN: Le GEIPAN". Groupe d'Études et d'Informations sur les Phénomènes Aérospatiaux Non Identifiés (GEIPAN). Paris: Centre national d'études spatiales (CNES). Retrieved 2013-05-16. 
  53. ^ a b GEIPAN statistics summary
  54. ^ English translation of GEIPAN FAQ
  55. ^ "Official French Gov't UFO study project to resume with new director". Seattle, WA: ufoevidence.org. October 2005. Retrieved 2013-07-13. 
  56. ^ "'Yes, UFOs exist': Position statement by SEPRA head, Jean-Jacques Velasco". Seattle, WA: ufoevidence.org. April 18, 2004 [Originally published in La Dépêche du Midi]. Retrieved 2013-07-13. 
  57. ^ "Assessment of the UFO phenomenon by GEPAN (1978)". Seattle, WA: ufoevidence.org. Retrieved 2013-07-13. 
  58. ^ "Ovni-nouvelle-commission-denquete-3AF-PAN (Partie 1)". Dailymotion. Paris: Orange. Retrieved 2014-01-11. 
  59. ^ "Rapport d'étape de la Commission Sigma/3AF" (PDF). Paris: Association Aéronautique et Astronautique de France. May 31, 2010. Retrieved 2014-01-11. 
  60. ^ Dini, Luc (January 10, 2013). "Sigma 2". 3AF. Paris: Association Aéronautique et Astronautique de France. Retrieved 2014-01-11. 
  61. ^ Boudier, Alain (June 20, 2013). Alexandre – Alain Boudier – Sygma & 3AF. Interview with Alexandre. RimLive.com. Paris. Retrieved 2014-01-11. 
  62. ^ Lissoni, Alfredo (Autumn 2001). "New Documents 'Will Revolutionize UFOlogy'!". Flying Saucer Review (London: Flying Saucer Service) 46/3: 13–17. ISSN 0015-4881. Retrieved 2013-09-09. 
  63. ^ Latagliata 2006
  64. ^ Pirro, Deirdre (June 17, 2010). "Unexpected fans". The Florentine (125/2010) (Florence: The Florentine Group). Retrieved 2013-07-13. 
  65. ^ Innocenti, Stefano. "Gli UFO nel Lazio". UFO.it (in Italian). Cermenate: Maurizio Verga. Retrieved 2013-07-13. 
  66. ^ Fiorino, Paolo. "Caselle, 1973". UFO.it (in Italian). Cermenate: Maurizio Verga. Retrieved 2013-05-16. 
  67. ^ Nattero, Rosalba (2011-06-14). "Il Monte Musiné tra storia, tradizione, UFO e viaggi nel tempo". Shan Newspaper. Retrieved 2014-02-03. 
  68. ^ Viberti 2010
  69. ^ Francesco Castagna: Il caso Zanfretta[incomplete short citation]
  70. ^ Ufo.it
  71. ^ "Unidentified Flying Objects" (PDF). The Black Vault. Northridge, CA: John Greenewald. June 1951. DSI/JTIC Report No. 7. Retrieved 2013-09-16. 
  72. ^ a b "UFO files". Kew: The National Archives. Retrieved 2013-09-10. 
  73. ^ "Files released on UFO sightings". BBC News (London: BBC). May 14, 2008. Retrieved 2013-05-16. 
  74. ^ "The truth is out there: Britons 'spotted' UFOs, records say". London. AFP. May 13, 2008. Retrieved 2013-05-16. 
  75. ^ "Airliner had near miss with UFO". BBC News (London: BBC). October 20, 2008. Retrieved 2013-05-16. 
  76. ^ Defence Intelligence Staff (December 2000). "Unidentified Aerial Phenomena in the UK Air Defence Region: Volume 3" (PDF). Kew: The National Archives. p. 2. 55/2/00. Retrieved 2013-09-10.  See also The National Archives site: "Unidentified Aerial Phenomena (UAP) in the UK Air Defence Region" for archived documents.
  77. ^ Dearing, Stephanie (December 5, 2009). "Cost-cutting causes British gov't to shut down UFO investigations". Digital Journal (Toronto). Retrieved 2013-05-16. 
  78. ^ "Churchill 'banned UFO report to avoid mass panic'". London. AFP. August 5, 2010. Retrieved 2013-05-16. 
  79. ^ "Churchill Ordered UFO Coverup, Documents Suggest". FoxNews.com (New York: Fox Entertainment Group). August 5, 2010. Retrieved 2013-07-13. 
  80. ^ "Churchill ordered UFO cover-up, National Archives show". BBC News (London: BBC). August 5, 2010. Retrieved 2013-07-13. 
  81. ^ Isgleas, Daniel (June 7, 2009). "Hay aún 40 casos de ovnis sin explicación". El País (in Spanish) (Montevideo: Teledoce). Retrieved 2013-09-10. 
  82. ^ Sparks, Brad, ed. (October 2, 2009). "Comprehensive Catalog of 1,600 Project BLUE BOOK UFO Unknowns". CUFOS.org. Chicago: Center for UFO Studies. Retrieved 2013-07-13. 
  83. ^ Hynek 1972, p. 52
  84. ^ Herb, Gert; Hynek, J. Allen (May 2006). "The Amateur Astronomer and the UFO Phenomena". International UFO Reporter. Reprint (Chicago: J. Allen Hynek Center for UFO Studies) 30 (3): 14–16. 
  85. ^ "http://www.huffingtonpost.com/2011/08/26/ufos-pilots-history-channel_n_935847.html"
  86. ^ "http://www.nbcnews.com/id/44555210/ns/technology_and_science-science/t/so-whats-big-increase-ufo-reports/#.UwmAwvldWqg
  87. ^ "http://www.thestar.com/news/insight/2013/06/02/ufo_sightings_have_doubled_in_canada_are_there_aliens_among_us.html"
  88. ^ "http://survey.canadianuforeport.com/
  89. ^ "http://www.theguardian.com/world/2013/oct/27/peru-ufo-investigations-office-reopening"
  90. ^ "http://www.dinae.fap.mil.pe/
  91. ^ Copping, Jasper (November 4, 2012). "UFO enthusiasts admit the truth may not be out there after all". The Daily Telegraph (London: Telegraph Media Group). Retrieved 2013-11-21. 
  92. ^ "http://badufos.blogspot.com/2012/11/are-ufo-enthusiasts-giving-up-on.html
  93. ^ Sturrock, et al. 1998, Appendix 4: "Electromagnetic-Wave Ducting" by V. R. Eshleman
  94. ^ Hendry 1979
  95. ^ "2001 National Press Club Event" on YouTube
  96. ^ Duin, Julia (May 11, 2001). "Government is covering up UFO evidence, group says". The Washington Times (Washington, D.C.: News World Communications). Retrieved 2013-09-11. 
  97. ^ Spavin, Vicky (May 9, 2001). "They're Here; UFO Watchers to Reveal Proof That Aliens Have Visited Earth". The Daily Record (Glasgow: Trinity Mirror). Retrieved 2013-03-10. 
  98. ^ Raymer, Katelynn; Ruppe, David (May 10, 2001). "Group Calls for Disclosure of UFO Info". ABC News. Retrieved 2013-03-11. 
  99. ^ Watson, Rob (May 10, 2001). "UFO spotters slam 'US cover-up'". BBC News (London: BBC). Retrieved 2013-09-11. 
  100. ^ Kehnemui, Sharon (May 10, 2001). "Men in Suits See Aliens as Part of Solution, Not Problem". FoxNews.com (New York: Fox Entertainment Group). Retrieved 2007-05-10. 
  101. ^ McCullagh, Declan (May 10, 2001). "Ooo-WEE-ooo Fans Come to D.C.". Wired News (Waltham, MA: Lycos). Retrieved 2007-05-10. 
  102. ^ Schmidt, Brad (April 25, 2002). "Alien theorist offers proof of government coverup". Oregon Daily Emerald (Eugene, OR). Retrieved 2012-12-12. 
  103. ^ Symington, Fife (November 9, 2007). "Symington: I saw a UFO in the Arizona sky". CNN (Atlanta, GA: Turner Broadcasting System). Retrieved 2013-11-25. 
  104. ^ Salas, Robert; Hastings, Robert (September 15, 2010). "U.S. Nuclear Weapons Have Been Compromised by Unidentified Aerial Objects" (Press release). Washington, D.C.: PR Newswire. Retrieved 2013-09-11.  "National Press Club: UFOs Tampering with Nukes - Part 1/7" on YouTube
  105. ^ Schultz, Marisa (April 29, 2013). "Ex-Rep. Kilpatrick 'waiting to hear' evidence of space aliens". The Detroit News (MediaNews Group). Archived from the original on 2013-05-31. Retrieved 2013-09-11. 
  106. ^ "Citizen Hearing on Disclosure". Citizen Hearing on Disclosure. Bethesda, MD: Paradigm Research Group. Retrieved 2013-09-11. 
  107. ^ Haines 1979, Chapter: "The Zeitgeist of the UFO Phenomenon" by Armando Simón
  108. ^ Giere, Ronald N.; Bickle, John; Mauldin, Robert F. (2006), Understanding Scientific Reasoning (5th ed.), Wadsworth Publishing, p. 99, ISBN 0-15-506326-X, LCCN 2005922853, OCLC 61369793 
  109. ^ "Frequently Asked Questions: What is UFOLOGY?". MUFON.com. Cincinnati, OH: Mutual UFO Network, Inc. Retrieved 2013-07-13. 
  110. ^ "UFO EVIDENCE: Scientific Study of the UFO Phenomenon and the Search for Extraterrestrial Life". Seattle, WA: ufoevidence.org. Retrieved 2013-07-13. 
  111. ^ Whaley, Adam; Alexander, Richard (June 5, 1997). "Correspondences of reports on 21st Nov sightings with other reports". United Kingdom UFO Network 2 (75). Retrieved 2013-09-06. 
  112. ^ Hatzopoulos, Dimitris. "UFO Technical Overview - UFO shapes, types, colors, illumination - UFO pictures". Thessaloniki: Hypernet. Retrieved 2013-07-13. 
  113. ^ Defence Intelligence Staff (December 2000). "Unidentified Aerial Phenomena in the UK Air Defence Region: Volume 3" (PDF). Kew: The National Archives. p. 3. 55/2/00. Retrieved 2013-09-12.  See also The National Archives site: "Unidentified Aerial Phenomena (UAP) in the UK Air Defence Region" for archived documents.
  114. ^ "Physical Evidence Related to UFO Reports - Sturrock Panel - Abstract, Summary and Introduction". Seattle, WA: ufoevidence.org. Retrieved 2013-09-08. 
  115. ^ Sturrock, et al. 1998
  116. ^ "Sturrock Panel". Seattle, WA: ufoevidence.org. Retrieved 2013-09-08.  Other links to Sturrock panel.
  117. ^ Van Utrecht, Wim. "Triangles over Belgium". Caelestia. Caelestia.be. Retrieved 2013-07-13. 
  118. ^ Fawcett & Greenwood, 81–89; Good 1988, pp. 318–322, 497–502
  119. ^ Good 1988, pp. 371–373
  120. ^ Stanford 1976, pp. 112–154
  121. ^ "UFO Relics". UFO Hunters. Season 3. Episode 33. May 6, 2009. History.
  122. ^ Krismantari, Ika (February 6, 2011). "Crop circles provide food for thought". The Star (Petaling Jaya: Star Publications). Retrieved 2013-09-12. 
  123. ^ "Is the Government Hiding Facts On UFOs & Extraterrestrial Life?; New Roper Poll Reveals that More Than Two-Thirds of Americans Think So" (Press release). New York: Business Wire. October 15, 2002. Retrieved 2013-09-12. 
  124. ^ "Poll: U.S. hiding knowledge of aliens". CNN (Atlanta, GA: Turner Broadcasting System). June 15, 1997. Retrieved 2013-09-12. 
  125. ^ Corrales, Scott (2001). "People Are Strange: Unusual UFO Cults Examined". Paranoia (San Diego, CA). Archived from the original on 2003-02-08. 
  126. ^ Posner, Gary P. (July 1992). "The Gulf Breeze 'UFOs'". Tampa Bay Sounding (Seminole, FL: Tampa Bay Mensa). Retrieved 2013-07-13. 
  127. ^ Banse, Tim (May 17, 2007). "Warren Smith: UFO Investigator or Hoaxster". A Different Perspective (Blog). Kevin D. Randle. Retrieved 2013-09-12. 
  128. ^ Jacobs 2000, Chapter: "UFOs: Lost in the Myths" by Thomas E. Bullard, p. 141
  129. ^ Jacobs 2000, Chapter: "UFOs, the Military, and the Early Cold War Era" by Michael D. Swords, pp. 82–121
  130. ^ "The Roper Poll". Ufology Resource Center. SciFi.com. September 2002. Archived from the original on 2006-07-13. Retrieved 2006-08-19. 
  131. ^ "UFO Fast Facts". MUFON.com. Cincinnati, OH: Mutual UFO Network, Inc. Archived from the original on 2008-04-30. Retrieved 2013-07-13. 

Bibliography

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External links