Official reports, hearing transcripts, case files and releases: the paper behind the cases. 2,872 documents, 2,610 mirrored with their text, 53,529 pages indexed, so a search reads inside them and lands on the page.
This audio file records a March 1952 presentation by Captain Edward J. Ruppelt, outlining the U.S. Air Force’s reorganized investigation into unidentified flying objects (UFOs). The presentation previews prospective technical methodologies, such as diffraction-grating photography and radar-scope synchronization, that were subsequently incorporated into Project Blue Book, a U.S. Air Force program active from 1952 to 1969 that investigated the nature and origin of UFOs. Ruppelt explains that out of approximately 800 historical cases reviewed by the Air Force, approximately 20% remained unexplained after technical analysis. These unresolved reports were sourced from credible military personnel, commercial pilots, and other qualified technical observers. He highlights geographic report concentrations around sensitive national security and nuclear weapons installations (including Los Alamos, Albuquerque, and Oak Ridge National Laboratories) and notes recurring anomalous characteristics, including silent high-speed flight and radar detections indicating unconfirmed air speeds between 1,000 and 3,500 miles per hour. Emphasizing that the Air Force found no conclusive evidence regarding the nature or origin of the phenomena, Ruppelt underscores the national security need for a systematic physical data collection effort to better evaluate these sightings.
p. 1…Analysis of an
Aluminum Specimen
Prepared by Oak Ridge National Laboratory (ORNL)
for the All-Domain Anomaly Resolution Office (AARO)
p. 2…Oak Ridge National Laboratory
(ORNL) independently performed multiple, cross‑validated measurements showing that the
material is a conventional, near‑eutectic…
p. 1…around sensitive national
security and nuclear weapons installations (including Los Alamos, Albuquerque, and Oak Ridge
National Laboratories) and notes recurring…
p. 1…around sensitive national
security and nuclear weapons installations (including Los Alamos, Albuquerque, and Oak Ridge
National Laboratories) and notes recurring…
p. 41…Alamos National Laboratories, Lawrence Livermore
National Laboratory, Sandia National Laboratories, Pacific Northwest National Laboratory, and
Oak Ridge National Laboratory to…
p. 40…Alamos National Laboratories, Lawrence Livermore
National Laboratory, Sandia National Laboratories, Pacific Northwest National Laboratory, and
Oak Ridge National Laboratory to…
p. 40…Alamos National Laboratories, Lawrence Livermore
National Laboratory, Sandia National Laboratories, Pacific Northwest National Laboratory, and
Oak Ridge National Laboratory to…
p. 40…Alamos National Laboratories, Lawrence Livermore
National Laboratory, Sandia National Laboratories, Pacific Northwest National Laboratory, and
Oak Ridge National Laboratory to…
p. 40…Alamos National Laboratories, Lawrence Livermore
National Laboratory, Sandia National Laboratories, Pacific Northwest National Laboratory, and
Oak Ridge National Laboratory to…