Project Blue Book (1955) vs. AARO Historical Record Report (2024): How U.S. Government UAP Investigation Has Been Documented

Two U.S. Government-produced studies, separated by nearly seven decades, each assessed the available evidence on unidentified aerial phenomena and stated their findings. This comparison draws each side directly from the respective document's archived record and published summary.

Project Blue Book Special Report No. 14 (Battelle/ATIC, May 1955)

Prepared for the Air Technical Intelligence Center by the Battelle Memorial Institute, the report analyzed approximately 4,000 UFO sighting reports from 1947–1952 using IBM punched-card data and statistical methods. The study found no marked patterns or trends in the data as a whole; intensive analysis of the best 'unknown' cases yielded no model of a 'flying saucer.' The report concluded it was highly improbable that any of the unknowns represented technological developments beyond the era's scientific knowledge, and noted a complete lack of physical evidence across all cases.

Source: https://www.archives.gov/research/military/air-force/ufos

AARO Historical Record Report, Volume I (February 2024)

AARO's congressionally directed historical review surveyed U.S. Government UAP investigatory programs since 1945 — including Project SIGN, GRUDGE, BLUE BOOK, the Condon Report, AAWSAP/AATIP, and the UAP Task Force — and assessed claims that the government or contractors recovered and concealed off-world technology or biological material. AARO states two principal findings: it found no evidence that any U.S. Government investigation, academic-sponsored study, or official review panel confirmed that a UAP sighting represented extraterrestrial technology; and it found no empirical evidence for claims that the U.S. Government or private companies reverse-engineered extraterrestrial technology.

Source: https://www.aaro.mil/Portals/136/PDFs/AARO_Historical_Record_Report_Vol_1_2024.pdf

UAP Records Archive is an independent public archive and is not an official or government source. Statements above faithfully restate the cited official records; the original documents are authoritative.