The Project Blue Book Collection, recently added to The Black Vault, contains thousands of pages of declassified UFO documents, all part of official investigations into UFO phenomena conducted by the United States military from 1947 to 1969.
Some of these documents were already available at places like the Blue Book Archive, but according to Military Times, this is the first time they’ve been made available in PDF format and in a searchable database.
According to the Project Blue Book Collection website,
“This site was created by The Black Vault to house 129,491 pages, comprising of more than 10,000 cases of the Project Blue Book, Project Sign and Project Grudge files declassifed. Project Blue Book (along with Sign and Grudge) was the name that was given to the official investigation by the United States military to determine what the Unidentified Flying Object (UFO) phenomena was. It lasted from 1947 – 1969.”
You can browse files by year, or do a search of your own. Whether or not you’ll find what you’re looking for — and whether or not they’ve released everything of interest — is another matter entirely.
Check it out: The Project Blue Book Collection