Investigations

Browse all dossiers in the archive. Each investigation compiles documented facts, supporting and contradicting evidence, open questions, and source references.

3 DOSSIERS

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CATEGORY:ALL GOVERNMENT & INTELLIGENCE UFOS & AEROSPACE HISTORICAL MYSTERIES SECRET SOCIETIES SIGNALS & SCIENCE CRYPTIDS ANCIENT MYSTERIES

STATUS:ALL DECLASSIFIED PARTIALLY DECLASSIFIED ACTIVE INVESTIGATION UNCONFIRMED UNDER REVIEW

SORT:MOST DOCUMENTS NEWEST ALPHABETICAL CLEAR FILTERS

Showing 3 of 3 dossiersCategory: UFOs & AerospaceStatus: DECLASSIFIED

UFOs & AerospaceDECLASSIFIED

Project Blue Book

The U.S. Air Force's official UFO investigation program from 1952 to 1969, which cataloged over 12,000 sightings and concluded most had conventional explanations.

245 DOCUMENTS3 CONNECTIONSJun 23, 2026

OPEN DOSSIER

UFOs & AerospaceDECLASSIFIED

Project Sign

The first U.S. Air Force official UFO investigation, established in 1948, which concluded some UFOs might be extraterrestrial.

45 DOCUMENTS2 CONNECTIONSJun 23, 2026

OPEN DOSSIER

UFOs & AerospaceDECLASSIFIED

Project Grudge

The U.S. Air Force's second official UFO investigation (1949-1951), which took a skeptical approach and aimed to debunk UFO reports.

38 DOCUMENTS2 CONNECTIONSJun 23, 2026

OPEN DOSSIER