Ufology
X-Files & Explanations
- Overview
- Unidentified flying object
- Ufology
- Paranormal and occult hypotheses about UFOs
- Extraterrestrial hypothesis
- Psychosocial hypothesis
- Interdimensional hypothesis
- UFO conspiracy theory
- Fermi paradox
- Official Responses
- List of government responses to UFOs
- Majestic 12
- Project Sign
- Estimate of the Situation
- Edward J. Ruppelt
- Project Grudge
- Project Blue Book
- Hector Quintanilla
- Robertson Panel
- Brookings Report
- Brian O'Brien
- Condon Committee
- Executive Order 12958
- Worldwide UFO declassification
- UFO Types
- Black triangle (UFO)
- Chupa (anomaly)
- Flying saucer
- Foo fighter
- Ghost rockets
- Green fireballs
- Identification studies of UFOs
- Lenticular Reentry Vehicle
- Military disc shaped aircraft
- Project Silver Bug
- Mystery airship
- Nazi UFOs
- Unidentified submerged object
- Vimana
- Sightings
- List of UFO sightings
- Tunguska event
- The Fatima UFO Hypothesis
- Battle of Los Angeles
- Roswell incident
- Roswell UFO incident
- Project Mogul
- Witness accounts of the Roswell UFO incident
- Arthur Trudeau
- Philip J. Corso
- Kenneth Arnold
- Kapustin Yar
- 1952 Washington D.C. UFO incident
- Project Serpo
- Jimmy Carter UFO incident
- Rendlesham Forest incident
- CE-4
- Close encounter
- Missing time
- Contactee
- List of alleged alien beings
- Men in Black
- Alien abduction
- History of alien abduction claims
- Alien abduction claimants
- Cattle mutilation
- Alien implants
- List of Ufologists