UFOs

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KENDRIYA VIDYALAYA NO.-2 COLABA MUMBAI:

KENDRIYA VIDYALAYA NO.-2 COLABA MUMBAI 2013 -2014

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ENGLISH PROJECT WORK GUIDED BY- M. GOWRI MAM MADE BY – SHWETA CLASS-IX-A ROLL NO- 41

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UFOs An unidentified flying object , or UFO , in its most general definition, is any apparent anomaly in the sky (or near or on the ground, but observed hovering, landing, or departing into the sky) that is not readily identifiable as any known object or phenomenon by visual observation and/or use of associated instrumentation such as radar . These anomalies were referred to popularly as " flying saucers " or "flying discs" during the late 1940s and early 1950s.

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The term "UFO" (or "UFOB") was officially created in 1953 by the United States Air Force (USAF) to replace the more popular terms because of the variety of shapes described other than "discs" or "saucers." 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 .) The term UFO became more widespread during the 1950s, at first in professional literature, but later in popular use. UFOs garnered considerable interest during the Cold War , an era associated with a heightened concern for national security.

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Various studies, both governmental and civilian, have reached varying conclusions, some saying 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 ), while others have reached the opposite conclusions (see, e.g., 1999 French COMETA study, 1948 USAF Estimate of the Situation , Sturrock panel ). A number of military personnel and others have given statements about having witnessed UFOs themselves or having been privy to information about them. Culturally, the phenomenon has often been associated with extraterrestrial life or government-related conspiracy theories, and has become a popular theme in fiction.

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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.

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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 [35] 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.

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