UFOs Nuclear Facilities: The Official Paper Trail (1947–2025)
In July 1947, the FBI filed a photograph of a dark, disc-shaped object hovering over the atomic facilities at Oak Ridge, Tennessee, under the classification "INTERNAL SECURITY - X" (FBI file 62-HQ-83894). Seventy-eight years later, a 2025 military report detailed a helicopter pursuit of a "super-hot" orb over a classified test site, demonstrating a continuous, documented history of anomalous incursions over America's most sensitive installations (US Government UAP Sighting Report).
The Geographic Pattern Across 78 Years
The correlation between unidentified aerial phenomena and American nuclear infrastructure is often treated as a modern theory reliant on the anecdotal testimony of retired military personnel. However, the internal records of the United States government demonstrate that this geographic pattern exists entirely within the official paper trail. Across nearly eight decades, four different federal agencies—the Federal Bureau of Investigation (FBI), the United States Air Force (USAF), the Atomic Energy Commission (AEC), and the Department of Energy (DOE)—have quietly cataloged incursions over the nation's atomic laboratories, plutonium production plants, and weapons assembly facilities.
By examining the declassified files hosted at UAP Archives, a continuous administrative anxiety becomes visible. The documents do not attempt to solve the mystery of what these objects are; rather, they record the persistent, unauthorized presence of anomalous craft over restricted airspace, spanning from the dawn of the atomic age to the present day. This overview serves as a documentary hub, tracing the phenomenon across multiple nuclear sites.
1947: "Internal Security - X" at Oak Ridge
The documentation begins the same month as the famous Roswell incident. In July 1947, W. R. Presley photographed a "flying saucer" over Oak Ridge, Tennessee, the highly secured site responsible for enriching uranium for the Manhattan Project. The Knoxville FBI office forwarded the photograph and a local newspaper clipping to the Bureau, noting the subject as "FLYING SAUCERS" OBSERVED OVER OAK RIDGE AREA and applying the ominous routing tag "INTERNAL SECURITY - X" (FBI file 62-HQ-83894).
The FBI files from this era show a Bureau struggling to categorize the influx of reports near strategic sites. Subsequent sections of the same FBI file block contain extensive investigative records and eyewitness testimonies concerning flying discs documented between June 1947 and July 1968, specifically noting photographic evidence from sites like Oak Ridge and technical proposals regarding potential propulsion systems (FBI File 62-HQ-83894, Section 6).
1948–1950: The Green Fireballs of Los Alamos and Sandia
By 1949, the phenomena had shifted toward the weapons design and assembly hubs in New Mexico: Los Alamos and Sandia Base. A massive collection of USAF and Office of Special Investigations (OSI) documents details a concentrated military effort to track anomalous "green fireballs" penetrating the airspace over these atomic installations (USAF / AFOSI Project Blue Book files).
The military enlisted Dr. Lincoln LaPaz and Dr. W.D. Crozier to conduct scientific analyses of the phenomena. In an attempt to determine if the objects were physical craft or atmospheric anomalies, Dr. Crozier utilized impactment equipment to collect airborne particles following a fireball sighting near Socorro, New Mexico, on July 24, 1949. His report noted the discovery of "copper-bearing particles" in the atmosphere, though he cautiously concluded that associating the copper dust directly with the fireball remained "hazardous" without further high-altitude sampling (USAF / AFOSI Project Blue Book files).
The urgency of these incursions reached the highest levels of the scientific establishment. The OSI files document that conferences regarding the phenomena were held with Dr. Edward Teller, the theoretical physicist known as the father of the hydrogen bomb, alongside other prominent scientists and military intelligence officers (USAF / AFOSI Project Blue Book files).
1952–1957: Urgent Teletypes from Savannah River
As the Cold War escalated, so did the sightings over new nuclear infrastructure. On August 9, 1952, an urgent teletype was dispatched to FBI Director J. Edgar Hoover regarding an incident at the AEC's Savannah River Plant in South Carolina, a facility built to produce tritium and plutonium for thermonuclear weapons. The teletype reported that two employees of the E. I. Du Pont Company observed a "blue light with an orange fringe shaped like a saucer" flying at a high rate of speed over the plant's 400 Area (FBI File 62-HQ-83894).
The Savannah River Plant experienced repeated incursions. A later FBI file captures a nationwide rash of sightings in November 1957, noting that several persons reported a "red ball" hovering over the Savannah River facility. The document records an unofficial report that Air Force personnel at nearby Aiken, South Carolina, "spotted the object on radar and issued an alert" (FBI File 62-83894).
1970s–1980s: Manhattan Project Scientists Keep Watch
The historical memory of these events persisted among the scientists who witnessed them. In the 1970s, James L. Tuck, a prominent British physicist who worked on the Manhattan Project at Los Alamos, collected correspondence regarding the early sightings. One handwritten account sent to Tuck recalled that between 1948 and 1951, "several sightings of green lights were made at Los Alamos," often weaving in and out of the Jemez Mountains. The author noted that these events were "reported to the Protective Force Headquarters and should be a matter of record on their logs" (A-83-001 Series File).
This scientific interest was not entirely covert. A 1986 newsletter from the Pajarito Astronomers, a club based in Los Alamos, announced a meeting at the historic Fuller Lodge. The guest speaker was Dr. John Warren, and his scheduled topic was explicitly titled: "Why Should a Scientist be Concerned about UFO's?" (FBI UAP Files).
The Modern Link: Pantex and the 2025 Incident
The archival trail does not end in the Cold War; it extends into the modern era of digital sensors and advanced optics. A recent incident report from the Pantex Plant in Texas—the primary United States nuclear weapons assembly and disassembly facility—contains a redacted Ground Surveillance Radar image of an unidentified object. The file, which is a fragment of a larger report (labeled pages 5 and 6), includes two enhanced images processed by Sandia National Labs, showing a blurry, anomalous shape hovering in the facility's vicinity (Pantex Plant UAP Incident Report).
Even more striking is a highly classified (now redacted) 2025 US Government UAP Sighting Report. The document details a complex, multi-agency helicopter intercept of anomalous orbs over a classified facility. The incident occurred on the same day the facility had "completed a successful test" of an undisclosed system. Personnel using Forward Looking Infrared (FLIR) tracked an orb described as "super-hot" hovering at ground level before it accelerated and "broke into two objects." Later in the pursuit, a senior US intelligence official and the helicopter pilots observed a swarm of lights, with orbs appearing to "flare up" and remain stationary above the helicopter's rotor disk before flaring down in reverse order (US Government UAP Sighting Report).
What the document does not say
While these files confirm a decades-long pattern of airspace incursions at nuclear sites, they maintain strict administrative boundaries. The documents do not:
- Identify the origin, operators, or propulsion methods of the objects.
- Make any claims regarding extraterrestrial life or non-human intelligence.
- Provide the unredacted radar data or clear photographic evidence from the modern Pantex and 2025 incidents, as pages are missing or heavily censored.
- Explain why the objects frequently appeared shortly after successful weapons tests or facility expansions.
- Confirm whether the copper particles collected by Dr. Crozier in 1949 were definitively linked to the green fireballs.
Read it yourself
Explore the primary sources documenting UFOs at nuclear facilities:
