List of investigations of UFOs by governments

This is a list of government-sponsored investigations or reports related to UFOs.

Brazil

General	List of reported UFO sightings Sightings in outer space

Pre-20th century	Tulli Papyrus (possibly 15th century B.C.) Ezekiel's Wheel (circa 622–570 B.C.) 1561 celestial phenomenon over Nuremberg José Bonilla Observation (1883) Aurora (1897)

20th century	Los Angeles (1942) Kenneth Arnold (1947) Maury Island (1947) Roswell (1947) Aztec, New Mexico (1948) Mantell (1948) Chiles-Whitted (1948) Gorman Dogfight (1948) Mariana (1950) McMinnville photographs (1950) Sperry (1950) Lubbock Lights (1951) Carson Sink (1952) Nash-Fortenberry (1952) Washington, D.C. (1952) Flatwoods monster (1952) Ellsworth (1953) Kelly–Hopkinsville (1955) Lakenheath-Bentwaters (1956) Antônio Vilas Boas (1957) Levelland (1957) Trindade Island (1958) Barney and Betty Hill abduction (1961) Lonnie Zamora incident (1964) Solway Firth Spaceman (1964) Exeter (1965) Kecksburg (1965) Westall (1966) Shag Harbour (1967) Pascagoula Abduction (1973) Travis Walton incident (1975) Allagash (1976) Tehran (1976) Petrozavodsk phenomenon (1977) Operação Prato (1977) Valentich disappearance (1978) Robert Taylor incident (1979) Val Johnson incident (1979) Cash-Landrum incident (1980) Rendlesham Forest (1980) Trans-en-Provence (1981) Japan Air Lines (1986) Voronezh UFO incident (1989) Belgian UFO wave (1990) Varginha (1996) Phoenix Lights (1997)

21st century	Mexico (2004) O'Hare Airport (2006) Alderney (2007) Norway (2009) Morristown, New Jersey (2009)

Sightings by country

Types of UFOs

Hypotheses

Involvement

Abduction	History Entities Claimants Narrative Missing time Perspectives Insurance

Other	Implants Close encounter Contactee Declassification of documents Government responses (GEIPAN) Organizations Ufologists Topics

Culture

Skepticism

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