unidentified flying object

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Related to unidentified flying object: UFO

unidentified flying object



an object or light reportedly seen in the sky whose appearance, trajectory, and general dynamic and luminescent behavior do not readily suggest a logical, conventional explanation. Some of these phenomena have been photographed and others correlated with radar echoes. Throughout history there have been reports of strange objects in the sky. In the 20th cent. a number of observers claim to have seen vehicles, or "flying saucers," which some believe are space ships visiting the earth from other planets. Because the objects are often shining and in that part of the sky opposite the sun, most investigators, official and unofficial alike, tend to interpret them as reflections of the sun's rays from airplanes. Some UFOs, when pursued by planes, have proved to be weather balloons or other objects of unquestionably terrestrial origin. Fireballs, meteors, and other meteorological phenomena account for most of the relatively few UFOs that observers report seeing at night. However, there are some sightings that investigators are unable to explain in terms of known phenomena.


See D. Ritchie, UFO: The Definitive Guide to Unidentified Flying Objects and Related Phenomena (1994); B. Steiger, ed., Project Blue Book: The Top Secret UFO Findings Revealed (repr. 1995); J. Clark, The UFO Book: Encyclopedia of the Extraterrestrial (1997); B. Saler et al., UFO Crash at Roswell: The Genesis of a Modern Myth; J. A. Hynek et al., Night Siege: The Hudson Valley UFO Sightings (2d ed. 1998); J. A. Hynek, The UFO Experience: A Scientific Inquiry (1999); N. Pope, Open Skies, Closed Minds: For the First Time a Government UFO Expert Speaks Out (1999).

unidentified flying object

[¦ən·ī′den·tə‚fīd ′flī·iŋ ′äb‚jekt]
(science and technology)
Any reported flying object which cannot be identified or explained. Abbreviated UFO. Also known as flying saucer.
References in periodicals archive ?
Briefing documents for government ministers facing questions about policy on unidentified flying objects also form part of the release at the National Archives in Kew.
Xiaoshan Airport was shut down after the unidentified flying object was detected at around 9 pm, reports Xinhua.
The movement of the unidentified flying object was captured on camera and the footage rocked Russian TV network.
The Indian Army units have reportedly spotted objects reported to be unidentified flying object (UFO), hovering in the sky along the Line of Actual Control in Jammu and Kashmir state, according to PTI.
In what suspected to be an Unidentified Flying Object (UFO), strange lights were spotted over the skies of Tucson in Arizona and Kansas City on 27 July.
A woman from Hull has photographed what she believes is an Unidentified Flying Object (UFO).
London, September 20 (ANI): UK has witnessed more than triple number of unidentified flying object (UFO) sightings this year.
A video of a cigar-shaped Unidentified Flying Object (UFO) hovering over the skies of Denton, Manchester has been captured online.
London, Sep 7 (ANI): Chinese scientists claim that they filmed an unidentified flying object for about 40 minutes, during the solar eclipse on July 22.
17 (ANI): So disturbed was the British Government over reports of US Air Force personnel seeing an Unidentified Flying Object (UFO) on December 27, 1980 in the Rendlesham Forest area in Suffolk, that a former head of the armed forces wrote to the then Defence Secretary urging him to "demonstrate a more serious concern".
Konashenkov also pointed out his country's S-300 and S-400 systems are currently in Syria to protect the Russian troops, noting that the radius of these systems' reach would be a "surprise" to all unidentified flying objects.
Mr Millar asked Economy Minister Edwina Hart if she'd make a statement "on how many reports of unidentified flying objects there have been at Cardiff Airport since its acquisition by the Welsh Government".

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