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Department of Energy

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Document Release
Featured

PURSUE Release 04: Department of War declassifies 40 more UAP files — the historical tranche

The fourth tranche of the Trump administration's PURSUE program: 40 files — 14 documents, 3 images, 19 videos, 4 audio files — bringing the public corpus to 334 files. Where Release 03 was the FBI's tranche, Release 04 is the historical one: a 1955 CIA debrief of four observers (one a sitting U.S. Senator) watching an object over the Soviet Union, the 1949 Los Alamos conference on 'green fireballs' attended by Manhattan Project physicists, Project Sign's founding 1948 progress report, and three NASA photographs of an unidentified object shot from Space Shuttle Columbia in 1996. Nineteen AARO sensor videos and four Apollo-era 'light flash' audio segments round out the release.

The Pentagon, Virginia — United States#AARO#Cold War#Department of War#NASA
Sighting
Featured

The nuclear-weapons plant intrusion, released again — this time with the redactions lifted

On September 1, 2015, an unidentified object intruded the restricted airspace above the Pantex Plant near Amarillo, Texas — the facility where the United States assembles and disassembles its nuclear weapons. Ground-surveillance-radar imagery and an incident report were first released, heavily redacted, as part of PURSUE Release 02 in May 2026. PURSUE Release 04 republishes the same file, DOE-UAP-D005, with far fewer redactions.

PANTEX nuclear-weapons facility, Texas — United States#Radar Confirmed#Department of War#Nuclear Facility#PURSUE Release 04
Document Release
Featured

Los Alamos, 1949: the men who built the bomb spent a day arguing about green fireballs

PURSUE Release 04 publishes the verbatim transcript of a March 22, 1949 conference at Los Alamos, called after months of unexplained 'green fireball' sightings over the laboratory that built the first atomic bombs. Manhattan Project physicists — Edward Teller among them — argued over explanations ranging from shallow-angle meteors to an 'electron phenomenon'; meteoriticist Lincoln LaPaz told the room nothing like it had ever been seen in a meteorite fall. The conference adjourned without a consensus.

Los Alamos, New Mexico — United States#Cold War#Multiple Witnesses#Department of War#Nuclear Facility