Caelum Incognitum — The interactive encyclopedia of ufology
UAP (unidentified anomalous phenomena)
Classifications & scales
American acronym that has gradually replaced “UFO” in official vocabulary. Originally “Unidentified Aerial Phenomena”, it became “Unidentified Anomalous Phenomena” around 2022-2023 so as to cover objects reported in space and underwater as well. It is meant to shed the “flying saucer” imagery and to avoid prejudging an origin.
See also
- UFO (unidentified flying object)
- PAN (unidentified aerospace phenomenon)
- FANI (Spanish-language unidentified aerial phenomenon)
- AARO
- UAPTF
- USO (unidentified submerged object)
- Drones
- The 2023 Chinese balloon
- NARCAP
- Scientific Coalition for UAP Studies (SCU)
- Acronyms to know
- NASA independent study (2023)
- NHI (non-human intelligence)
- Ryan Graves