Project Blue Book Special Report 14

A 1955 US Air Force statistical study of about 3,200 UFO reports from 1947 to 1952. It sorted cases into knowns, unknowns and insufficient information (about 21.5% unknowns), ran a chi-square comparison of knowns against unknowns, and stated that the probability the unknowns were “flying saucers” was “extremely small”. Released in PURSUE Release 03 as CIA-UAP-015.

Connections

Project Blue Book · Robertson Panel