Skip to content
Disclosure Archives
All years
UAP events · The 1940s

UAP events in 1948

3 events in the archive

Every documented UAP event from 1948 in the Disclosure Archives record — hearings, document releases, official reports, named witness testimony, and major civilian sightings. Sorted newest to oldest within the year; each entry links to a primary source.

Every event from 1948

Document Release
Featured

Sandia, New Mexico: 209 'green orbs, discs, and fireballs' over a nuclear-weapons facility

A 116-page joint file from the U.S. Air Force and the Armed Forces Special Weapons Program — the Manhattan Project's nuclear-weapons custodial successor — documenting 209 sightings of 'green orbs,' discs, and fireballs maneuvering near the Sandia, New Mexico custodial nuclear-weapons installation between 1948 and 1950. Released in full as part of PURSUE Release 02; some sighting locations contained recovered copper powder.

Sandia Base, New Mexico — United States#U.S. Air Force#Cold War#Multiple Witnesses#Department of War
Document Release
Featured

Project Sign's first report, and the study the Air Force revised twice

PURSUE Release 04 publishes six U.S. Air Force files tracing the government's institutional handling of UFO reports from 1948 to 1967. The centerpiece is Project Sign's first progress report on 100 sightings from 1947-48, alongside both surviving drafts of Air Intelligence Division Study No. 203. Rounding out the file: records of the Avro 'Project Y2' saucer-shaped-aircraft assessments, 1955 correspondence relating to Project Blue Book, and the 1966-67 Scientific Advisory Board review that led directly to the Condon Committee and, eventually, Blue Book's closure.

The Pentagon, Virginia — United States#U.S. Air Force#Cold War#Project Blue Book#Department of War
← 1947 (4)
All years
1949 (2) →