About the Archive
The Project Blue Book Archive is the most comprehensive public collection of declassified U.S. Air Force UFO investigation files. From 1947 to 1969, Project Blue Book investigated over 12,000 reported sightings of unidentified flying objects.
📁 Complete Collection
Access thousands of declassified documents, photographs, and case files from the official U.S. Air Force investigation.
🔍 Fully Browsable
Navigate by date, location, or case type. All documents are organized and easy to explore.
📚 Historical Context
Includes administrative files, intelligence reports, and scientific analysis from the Cold War era.
Support the Archive
This archive is maintained by volunteers and made freely available to researchers, historians, and the public. You can support our work by:
- Purchasing the book: Project Blue Book Archive Book on Amazon
- Making a donation: Donate to keep the archive online
- Sharing: Help spread the word about this free resource