UFOs 12 000 of them!

20 years of data  and 12,000 UFO details have just been released

So read the files of the Air Force’s Project Blue Book — official records of more than 12,000 UFO sightings between 1947 and 1969 available online in a searchable database for the first time.
“This is as accessible as they’ve ever been,” said John Greenewald in a telephone interview with The Washington Post.

Washington Post

Blue Book collection