Pentagon’s new UFO file drop includes audio from 1952 Project Blue Book briefing

The Pentagon's latest declassification batch on unidentified aerial phenomena includes audio recordings tied to a 1952 briefing conducted under Project Blue Book, the U.S. Air Force's Cold War-era program that investigated UFO reports. The released material adds to the public record of primary-source documentation from the early years of official military inquiries into unexplained aerial observations.

The declassification of the audio followed advocacy from Rep. Eric Burlison, a Republican from Missouri, who urged that recordings from the Air Force's early investigations be made public. Burlison's push contributed to the decision to release the briefing audio as part of the Pentagon's file drop.

Project Blue Book, active during the mid-20th century, handled numerous reports and investigations related to unidentified aerial phenomena. The newly released 1952 briefing audio provides researchers and historians direct access to how officials discussed and assessed such reports at the time.

By making these recordings available, the Pentagon has expanded the archival material accessible to the public and to oversight bodies interested in the historical record of military engagement with unexplained aerial incidents. The release follows congressional interest in greater transparency around both historical and contemporary examinations of unidentified aerial phenomena.