Project Sign (1948).
documentednuclear_strategicRoswell
Project Sign was the first official US Air Force UFO investigation, established in 1948 under Air Materiel Command at Wright-Patterson AFB. It reportedly produced an 'Estimate of the Situation'…
Project Sign was the first official US Air Force UFO investigation, established in 1948 under Air Materiel Command at Wright-Patterson AFB. It reportedly produced an 'Estimate of the Situation' favoring the extraterrestrial hypothesis, which was suppressed by higher command. It matters as the origin point of formal US government UFO study.