Pentagon's Newest UFO Files Describe a Silent Black Triangle That Hovered, Then Shot Away
Two federal agents near a western U.S. national security site reported a dark delta-wing craft that climbed without a sound, stopped for 20 seconds and then vanished at fighter-jet speed.
Federal agents in the western United States watched a large triangular aircraft rise silently over a ridgeline this year, hover, and then accelerate out of sight, according to documents in the Pentagon's seventh release of files on unidentified anomalous phenomena. The batch, issued Friday, contains 28 PDF files and comes under an executive order President Trump signed earlier this year.
Two documents describe the encounter: a memo from the Pentagon's All-domain Anomaly Resolution Office, known as AARO, and a signed statement the agents gave the FBI. It happened in June near what the files call a "national security site" in the western U.S. A third agent stationed nearby alerted the two, who moved to get a better view. They spotted the craft above a ridgeline a few miles west, against the glow of the sky after sunset.
In the FBI statement, the agents called it a "dark black triangular object most resembling a delta wing drone." They estimated a wingspan of 9 to 15 feet, a depth of 6 to 9 feet and a thickness of 1 to 2 feet. The FBI document includes illustrations of the scene and the craft.
AARO's memo says the object made a slow vertical climb over the ridge, rising about 200 to 300 feet without tilting, swaying or wobbling. It did so in "absolute acoustic silence." Through an infrared scope the object looked warmer than the surrounding air, with a uniform heat signature and no visible exhaust. At 200 to 300 feet it stopped abruptly and hovered for about 20 seconds. Then it accelerated to a speed the memo compared to a military fighter jet, and the agents lost sight of it within seconds. The silence continued during the fast phase.
No physical evidence turned up. A ground survey of the canyon drainage the next morning found no wreckage, scarring or vegetation damage, and the agents saw no smoke, dust or other disturbance.
AARO said the incident "warrant[s] further investigation" because its features and movement closely match other reported incidents in the western U.S. Earlier releases describe similar cases. Files released in May detailed a 2023 report from federal law enforcement agents of orange orbs that released smaller red orbs over two days. A later batch contained agents' accounts of red lights that "accelerated instantly" and orbs compared to "grapes being expelled from a basketball." An August release included infrared video of two "black-hot" objects moving together at the same slow speed.
The documents do not say what the craft was, and AARO has not claimed it is anything other than unidentified. A small drone of the stated size would be an obvious candidate, but the reported silence, the hover and the speed are what keep the case open. Each release adds to a growing set of reports from law enforcement and military personnel near sensitive sites in the same region.
