Decades of Government UFO Research Still Leave ~5% of Sightings Unexplained
From 1947 onward, the United States Air Force conducted a series of formal investigations into UFO reports: Project Sign (1948), Project Grudge (1949), and the longest-running effort, Project Blue…
Narration
Thirteen thousand reports filed. Six hundred forty cases stamped UNIDENTIFIED — never explained.
The U.S. Air Force launched Project Sign, Grudge, then Blue Book — a twenty-two year reckoning.
Farmers, pilots, and police officers filed reports no one could explain, pointing at something silent.
Dr. J. Allen Hynek reviewed the 5% residual — his skepticism quietly, irreversibly broke.
The Condon Report closed Project Blue Book in December 1969. Six hundred files sealed forever.
Over six hundred cases. No explanation. No closure. The 5% still waits — unidentified, unanswered.