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The Phoenix Lights were a series of widely sighted unidentified flying objects observed in the skies over the southwestern U.S. states of Arizona and Nevada on March 13, 1997.
Identifying unidentified flying objects (UFOs) is a difficult task due to the normally poor quality of the evidence provided by those who report sighting the unknown object. Observations and subsequent reporting are often made by those untrained in astronomy, atmospheric phenomena, aeronautics, physics, and perception. Nevertheless, most officially investigated UFO sightings, such as from the U.S. Air Force's Project Blue Book, have been identified as being due to honest misidentifications of natural phenomena, aircraft, or other prosaic explanations. In early U.S. Air Force attempts to explain UFO sightings, unexplained sightings routinely numbered over one in five reports. However, in early 1953, right after the CIA's Robertson Panel, percentages of unexplained sightings dropped precipitously, usually being only a few percent in any given year. When Project Blue Book closed down in 1970, only 6% of all cases were classified as being truly unidentified.
A twilight phenomenon is produced when exhaust particles from missile or rocket propellant left in the vapor trail of a launch vehicle condense, freeze, and then expand in the less dense upper atmosphere. The exhaust plume, which is suspended against a dark sky, is then illuminated by reflective high-altitude sunlight through dispersion, which produces a spectacular, colorful effect when seen at ground level.
The Levelland UFO case occurred on November 2–3, 1957, on the highways around the small town of Levelland, Texas. Levelland, which in 1957 had a population of about 10,000, is located west of Lubbock on the flat prairie of the Texas South Plains. The case is considered by ufologists to be one of the most impressive in UFO history, mainly because of the large number of witnesses involved over a relatively short period of time. However, both the US Air Force and UFO sceptics have described the incident as being caused by either ball lightning or a severe electrical storm.
This is a list of alleged sightings of unidentified flying objects or UFOs in Iran.
This is a list of alleged sightings of unidentified flying objects or UFOs in Brazil.
This is a list of alleged sightings of unidentified flying objects or UFOs in Sweden.
This is a list of alleged sightings of unidentified flying objects or UFOs in Italy.
This is a list of notable alleged sightings of unidentified flying objects (UFOs) in the United Kingdom. Many more sightings have become known since the gradual release, between 2008 and 2013, of the Ministry of Defence's UFO sighting reports by the National Archives. In recent years, there have been many sightings of groups of slowly moving lights in the night sky, which can be easily explained as Chinese lanterns. Undertaken between 1997 and 2000, Project Condign concluded that all the investigated sightings of unidentified aerial phenomena in the UK could be attributed to misidentified but explicable objects, or poorly understood natural phenomena.
Below is a partial list of alleged sightings of unidentified flying objects or UFOs in Canada.
Jimmy Carter, United States president from 1977 until 1981, reported seeing an unidentified flying object while at Leary, Georgia, in 1969. While serving as governor of Georgia, Carter was asked by the International UFO Bureau in Oklahoma City to file a report of the sighting, and he filed a statement on September 18, mailed September 20. Since its writing, the report has been discussed several times by both ufologists and by members of the mainstream media.
This is an incomplete list of alleged sightings of unidentified flying objects or UFOs in Argentina.
The Norwegian spiral anomaly of 2009 was a light phenomenon that appeared in the night sky over Norway in the morning of 9 December 2009. It was visible from, and photographed from, northern Norway and Sweden. The spiral consisted of a blue beam of light with a greyish spiral emanating from one end of it. The light could be seen in all of Trøndelag to the south and all across the three northern counties which compose Northern Norway, as well as from Northern Sweden and it lasted for 10 minutes. According to sources, it looked like a blue light coming from behind a mountain, stopping in mid-air, and starting to spiral outwards. A similar, though less spectacular event had also occurred in Norway the month before. Both events had visual features of failed flights of Russian RSM-56 Bulava SLBMs, and the Russian Defence Ministry said shortly after that such an event had taken place on 9 December.
The most widely reported UFO incident in New Zealand, and the only one investigated, involved the Kaikoura lights encountered by aircraft, filmed and tracked by radar in December 1978. The New Zealand Defence Force does not take an official interest in UFO reports, but in December 2010 it released files on hundreds of purported UFO reports. New Zealand's then-Minister of Defence, Wayne Mapp said at the time people could "make what they will" of the reports, and said "a quick scan of the files indicates that virtually everything has a natural explanation".
In the afternoon of 23 April 2007, Ray Bowyer, a pilot flying south towards the island of Alderney in the English Channel sighted unidentified flying objects. He reported the sighting to an air traffic controller who told him that a second pilot had seen something similar. In Bowyer's report to the British Civil Aviation Authority he said he saw two bright, stationary objects. Two passengers on Bowyer's aircraft said that they saw unusual coloured lights at the same time. Proposed explanations for the sighting have included earthquake lights and sun dogs.
The Petrozavodsk UFO was a series of celestial events of a disputed nature that occurred on 20 September 1977. The sightings were reported over a vast territory, from Copenhagen and Helsinki in the west to Vladivostok in the east. It is named after the city of Petrozavodsk in Russia, Soviet Union, where a glowing object was widely reported that showered the city with numerous rays.
This is a list of alleged sightings of UFOs in India.
On 16 September 1994, there was a UFO sighting outside Ruwa, Zimbabwe. Sixty-two pupils at the Ariel School aged between six and twelve said that they saw one or more silver craft descend from the sky and land on a field near their school. Some of the children claimed that one creature or more creatures dressed all in black then approached and telepathically communicated to them a message with an environmental theme, frightening them and causing them to cry.
This is a list of alleged sightings of unidentified flying objects or UFOs in Albania.
The 1984 Hudson Valley UFO Sightings, also called "The Westchester Boomerang", were UFO sightings that stretched throughout 1983–1984 in New York and Western Connecticut. Pilots flew Cessna 152s in tight formation with bright lights that could change colors. State police reported that the pilots expressed amusement at the confusion caused by their hoax. Subsequent news stories, books, and other publicity helped make the sightings significant in local history and ufology lore.
