13 nov 2020 año - Immaculate Constellation dataset "directly informed by reviewing over 400 defense HUMINT reports on encounters by USG personnel from 1991 to 2022... this dataset is not exhaustive: other HUMINT data sources exist... the most common UAP shapes reported were spheres/orbs, discs/saucers, ovals/tic-tacs, triangles, boomerang/arrowhead and irregular/organic. The triangles/boomerangs/arrowhead shapes were by far the rarest and spheres the most common... oval-shaped UAPs were infrequently reported"

Descripción:

https://www.congress.gov/118/meeting/house/117721/documents/HHRG-118-GO12-20241113-SD003.pdf

https://mace.house.gov/immaculateconstellation

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