A railroad engineer reported seeing a light green ball descend vertically and strike the ground near Hinkle, Oregon, on April 23, 1952. Intelligence officers suggested the object might have been a meteor and recommended investigating the potential impact site.
A C-124 crew reported three circular, bluish objects in formation over Vermont on 24 April 1952. Military investigation, including radar checks, yielded no explanation for the sighting.
Two USAF civilian electronics technicians observed two unidentified, flat, square-like objects exhibiting wobbly flight over Milton, Massachusetts, on 24 April 1952. The report concludes that no identification was made and no physical evidence was recovered.
An unidentified vapor trail was observed at 30,000 feet over Thule Air Base on April 25, 1952. Witnesses were unable to identify the source, and a local aircraft in the area was ruled out by its pilot.
A series of reports from April 1952 details a sighting of glowing, V-shaped formations over Fargo, North Dakota. The investigation concluded that the objects were migrating mallard and teal ducks reflecting city lights.
A civilian witness reported a high-speed, spherical, bright white object over Grand Rapids, Michigan, on 27 April 1952. Official investigation found no radar confirmation and suggested the sighting may have been an aircraft distorted by the sun.
This report details a 1952 sighting of four unconventional aerial objects by four experienced observers in Roseville, Michigan. The objects exhibited advanced flight characteristics, including rapid vertical movement and high-speed travel, and remained unidentified by the investigating Air Force officer.
A Ground Observer Corps member reported a cigar-shaped, wingless, polished aluminum object over Waskish, Minnesota, on April 27, 1952. The military investigation concluded it was possibly a meteor due to insufficient data.
A military tower operator reported sighting 7-8 red, disc-shaped objects over Yuma, Arizona, on April 27, 1952. The observer, citing his professional experience, ruled out conventional aircraft due to the objects' non-normal flight characteristics.
A B-29 bombardier reported a fan-shaped, pulsating light over Kansas in April 1952. Despite investigation by the Department of Astronomy at Washburn University, the phenomenon remained unexplained.
An 87-year-old woman reported an oval, pink UFO in Topeka, Kansas, on April 29, 1952. Air Force investigators concluded the sighting was likely a reflection of ground-based searchlights on clouds.
A series of UAP sightings at George AFB in May 1952 were investigated by ATIC. Most were attributed to weather balloons launched from Edwards AFB, though some reports remained unexplained.
A series of reports from May 1952 regarding aerial phenomena observed in Australia. RAAF investigators concluded the sightings were likely caused by a meteor.
This document is a brief record of a May 4, 1952, UFO sighting in San Francisco, California, involving a single photograph taken by Paul Eisenberg. It serves as a primary source for the existence of this specific photographic evidence.
This file documents the investigation of a 1952 UFO sighting in Brazil, which was determined by US intelligence and photo experts to be a hoax. The photographers involved attempted to sell the images for a large sum before eventually offering them for free.
This document is a photographic file (File 1187) containing five images of an unidentified disc-shaped object over Rio de Janeiro, Brazil, dated May 7, 1952.
This document is a brief administrative record for a May 9, 1952, sighting at George AFB, California, which includes a single photograph as evidence.
Two Project 10073 record cards document UAP sightings near El Centro, California, on May 13, 1952, involving both pilot and radar observations. Both incidents were officially categorized as possibly being meteors.
This report documents multiple sightings of unidentified aerial objects over Southern California and Arizona on 13 May 1952. Military intelligence concluded these were likely B-47 aircraft, meteors, or reflections, while noting a critical lack of coordination between local law enforcement and military reporting channels.
Four amateur astronomers in Greenville, South Carolina, observed four glowing, oval-shaped objects in a diamond formation on 13 May 1952. The Air Force investigation concluded the incident remained 'Unknown' after ruling out aircraft and finding the avian explanation inconclusive.
A senior college student reported a silent, elliptical, brownish-green object in Yellow Springs, Ohio, on May 14, 1952. The official military evaluation classified the sighting as a probable meteor.
A sighting of an illuminated white object by four civilians in Malung, Sweden, on May 14, 1952. The Swedish Defense Staff concluded the object was likely meteoric.
This document is an Air Intelligence Information Report regarding a 1952 sighting of two spherical, orange objects by five witnesses in Puerto Rico. The military investigation found no natural explanation for the event but could not determine its significance to the broader 'flying saucer' project.
These reports document multiple UFO sightings by USAF pilots in Korea during May 1952. While some were attributed to enemy lighted balloons or radar malfunctions, others remained unexplained.
Multiple witnesses, including US Navy personnel, reported a fast-moving, saucer-like object over Washington D.C. on 15 May 1952. Despite detailed descriptions of the object's behavior and appearance, the official military conclusion classified the event as a meteor.
A Brazilian civil aviation inspector reported a metallic, light blue, rounded object hovering and maneuvering at Rio de Janeiro's Galeão Airport on May 16, 1952. The Air Technical Intelligence Center recorded the incident under Project 10073 but concluded there was insufficient data for evaluation.
This document is a brief sighting report from May 19, 1952, in San Angelo, Texas, which includes a single photograph of an unidentified object in the sky. It provides no narrative details or official analysis regarding the nature of the sighting.
An RB-36 crew observed seven white, doughnut-shaped objects in a vertical column over Texas on 19 May 1952. The military investigation concluded the objects were likely rocket or missile exhaust, despite noting the persistence of the trails was inconsistent with wind conditions.
This OSI report documents an investigation into multiple UFO sightings in Gonzales, Texas, in 1951 and 1952. Despite interviewing witnesses and local officials to assess credibility, the Air Force reached no definitive conclusion regarding the nature of the observed objects.
Two Air Force pilots observed an unidentified orange-white light performing erratic maneuvers over Houston on May 20, 1952. The incident was investigated by the 3605th Navigator Training Wing and filed under Project 10073 as an unexplained sighting.
A glass marble covered in tar struck a mailbox in Lombard, Illinois, in 1952. The Air Technical Intelligence Center concluded it was likely thrown or slung and required no further investigation.
A civilian reported a reddish, oval-shaped object moving erratically over Alexandria, Virginia, on May 22, 1952. Official radar and air traffic control checks yielded negative results, leading to a classification of insufficient data.
A group of eight witnesses in Stockton, California, observed a stationary, rectangular, silver object at 30,000 feet on 22 May 1952. The investigation concluded the object was a weather balloon, despite negative reports from local weather stations.
Multiple military personnel at Kirtland AFB observed an unidentified silver, dome-shaped object for 45 minutes on 23 May 1952. Despite attempts at radar and airborne interception, the object remained unidentified and eventually drifted below the horizon.
A USAF officer and his wife reported a stationary, shiny, round object in the sky near Santa Rosa, New Mexico, on 24 May 1952. The object hovered for two minutes before departing at high speed, with later annotations suggesting it may have been a balloon.
A TWA pilot reported two reddish, torpedo-shaped objects without center sections near Zuni, New Mexico, on May 24, 1952. The Air Force investigated the sighting under Project 10073 and concluded the objects likely represented astronomical activity.
Radar operators at the 767th AC&W Squadron in New Mexico tracked an unidentified target moving at 1800 mph on 25 May 1952. Intelligence assessments concluded the radar returns were likely caused by electronic interference or spoofing rather than a physical object.
Intelligence reports from May 1952 detail two separate sightings of unidentified aerial objects in Michigan and Texas. Despite thorough investigations by Air Force personnel, no conventional explanation was found for the objects' high speeds, formations, and physical characteristics.
Colonel Aram S. Tootelian reported sighting an unidentified object resembling a submarine periscope off the coast of Temara Beach, French Morocco, on May 27, 1952. Despite his experience as a pilot, he could not identify the object, and subsequent searches failed to relocate it.
This document is a 1952 Air Force investigation report regarding UFO sightings in Baltimore, Maryland. It concludes that military L-19A aircraft were operating in the area during the time of the reported sightings.
This report documents a 1952 UFO sighting in Saigon by multiple witnesses. Despite an investigation by the Air Attache, the object remained unidentified and no physical evidence was found.
This report details three sightings of unidentified circular objects over Albuquerque on 28 May 1952 by fire department personnel. The objects were described as high-speed, silent, and lacking conventional propulsion, and were officially classified as unfamiliar.
B-29 crews reported five greenish, globe-shaped objects over New Mexico and Oklahoma on 29 May 1952. While officially categorized as a possible meteor shower, the reporting crews explicitly stated their belief that the objects were not meteorites.
Seven technical personnel at Edwards AFB observed two disc-shaped objects performing high-speed maneuvers on May 29, 1952. The report highlights the high credibility of the witnesses but notes a lack of physical evidence.
An Air Force pilot observed a bright, tubular object over San Antonio for 14 minutes on 29 May 1952. The object performed maneuvers and changed color before accelerating out of sight, resulting in an 'insufficient data' classification.
Two military-affiliated observers reported an unusual aerial object in Tipp City, Ohio, on 29 May 1952. The object was tracked through a telescope and binoculars, displaying steady red and green lights with no audible sound.
A C-54 crew reported a dark, hovering object near Oshima, Japan, on May 30, 1952. While the pilot dismissed it as a cloud, the co-pilot and engineer insisted it was an unfamiliar object.
A Project 10073 record card documenting a 1952 sighting of a fireball over Port Townsend, Washington. The object was officially identified as a meteor.
A civilian reported a green, spherical object with a yellow tail near Fresno, California, on 30 May 1952. The Air Technical Intelligence Center concluded the object was a probable meteor.
An F-94 crew reported a high-performance unidentified object over North Korea on 31 May 1952 that displayed superior speed and maneuverability. Despite the visual engagement, the object was not detected by ground radar, and intelligence officials suggested it may have been a light on a high-performance aircraft.
On 31 May 1952, a radar mechanic in Korea observed a highly maneuverable, pulsating aerial object that performed vertical climbs and instantaneous direction changes. Despite an attempted F-94 interception and ground-based radar monitoring, the object remained unidentified and was not captured on radar.
This document concerns a 1952 UFO sighting report from El Moján, Venezuela. The associated photographic evidence was officially determined to be a crude hoax created with an India ink sketch.
A B-25 pilot and co-pilot observed a rectangular, metallic object near Albuquerque on 7 June 1952. The object passed within 300 feet of their aircraft, but could not be identified.
These documents contain intelligence reports regarding two distinct UAP sightings in June 1952, one in Chicago and one in Kentucky. Air Force investigators concluded that neither sighting could be explained by conventional aircraft or known phenomena.
A military officer reported 15-20 unidentified objects near Randolf AFB, Texas, in 1952. The official conclusion for the sighting was 'Possible : BIRDS'.
This document is a sighting report file (File 1277) from June 13, 1952, in Linda Vista, California. It contains two photographs documenting an unidentified object in the sky.
A round, silver object was sighted near Lynchburg, Virginia, on June 19, 1952, by a witness with military anti-aircraft experience. The Air Technical Intelligence Center investigated the incident under Project Blue Book, including dispatching a fighter aircraft, but found no evidence of the object.
This document contains a series of Air Intelligence Information Reports from 1952 detailing various UAP sightings across the United States and Japan. Despite thorough investigations by military intelligence, most sightings remained officially unexplained due to a lack of physical evidence or radar confirmation.
This document compiles reports of unidentified aerial phenomena observed on 24 June 1952 in New Mexico and Labrador. Military investigators documented visual and radar sightings, noting the objects' unique characteristics and the failure of interceptor aircraft to identify them.
An unconfirmed sighting of an 'intermittent fire' object occurred over Meade, Kansas, on 25 June 1952. Military authorities determined that no meteorological conditions or aircraft in the area could explain the observation.