The Black Triangle Files

The black triangle files are four FBI witness interview records, declassified on 7 August 2026, describing large triangular objects seen between 2002 and 2023. All four witnesses describe a solid triangle rather than a formation of lights. Three describe complete silence. Two, interviewed separately more than two years apart, describe sightings over the same American city in the same month, and both mention visual distortion around the object. None of them got a photograph.

The triangle is the defining UFO shape of the modern era. It has been reported by the thousand since the Belgian wave of 1989 to 1990, and it has always suffered from the same evidential problem: enormous quantities of sincere testimony and almost nothing on paper. These four files change that a little. They are not proof of anything, but they are the kind of thing that has been missing — sworn accounts, taken by federal agents, written up on a standard form, with the agency's own illustrator turning the descriptions into pictures.

Bagram, 2002: The Triangle That Blacked Out the Stars

The oldest and largest of the four happened at Bagram Air Base in Afghanistan in June 2002. Two pilots were outside at about 4:30 in the morning, looking at the stars, when the stars began disappearing.

He put it at 500 feet across, though he said he could not fully make out its shape. The second pilot watched it pass and asked him, "did you see that?" Neither man raised it with anyone at the time. He told the FBI he later went looking through data for anything that could account for it and never found an explanation.

We have given this case its own page, because the same witness also reported something else entirely: high-altitude lights that he and other pilots have been seeing on the North Atlantic run since 2023, including on flights from Boston to Dublin. The full account is in the Bagram triangle incident.

2011: A 200-Foot Triangle That Hummed

On an evening in June or July 2011, three people were leaving a driveway in a car at around 8 or 9pm. The location is redacted. About fifty feet down the road, one of them looked out of the window and saw three lights in the sky, got out of the vehicle, and looked up.

What he described to the FBI in April 2025 was a massive black isosceles triangle flying north, low to the ground, with a car-sized white light set back from each of its three corners, each giving off a diffuse glow. It was making a low humming noise that pulsed. A second witness estimated it at 200 feet long and 100 feet wide, perhaps 800 feet up, moving slowly and steadily, with something greyish or graphite-coloured in the middle of the underside.

They tried to film it. By the time a phone was out, it had cleared the tree line behind the houses to the north. Total viewing time was 10 to 15 seconds. There were no contrails. Neither witness could describe the object's thickness or side profile, for a reason worth noting: they had been standing underneath it, and by the time they might have seen it from behind, they were both looking at a phone.

Colorado Springs, October 2023: Two Sightings, One Month

The most interesting thing in these files is not any single account. It is that two of them describe the same city in the same month, and the witnesses were interviewed by different agents more than two years apart.

The translucent triangle

At about 10:50pm on an October night in 2023, a man and his wife were sitting on the back porch of their home in Colorado Springs with their backs to the house. He noticed movement before he saw an object. When he looked properly, something was passing over the house from behind them, heading southwest, perhaps as low as 300 feet and roughly the size of a large SUV.

His description of how it looked is unusual enough to quote at length. It appeared almost see-through, with a haze or distortion around it, as if he were looking at it through mist, with ripples like an object seen underwater. A perfect triangle, dark grey or silver, with rounded edges, point forward. Along the flat trailing edge was a band of silverish-blue light. He wondered aloud to the agents whether that band was something to do with how it moved.

It crossed in a straight line at constant height, covering a lot of sky very fast. Just before he lost it, the left side of the triangle banked up to almost vertical without changing course or altitude at all. It was completely silent, and he felt no rumble or static as it went over. The whole thing lasted four seconds — not enough time to get a phone out. He lives near an airport and told the agents he was thoroughly familiar with how normal aircraft look and sound overhead, including current unmanned types, and that this matched nothing he had seen.

There is one detail in the file that shows the couple knew what they were doing. Straight after it passed, he and his wife went inside to separate rooms, so that each could set down an account without influencing the other. Hers included something his did not: a dark seam running around the edge of the object.

The triangle that came out of a cloud

The second Colorado Springs witness was outside at work on an October evening in 2023, between 8pm and 9:30pm, admiring the stars on a clear night with a colleague. He is another regular sky-watcher, used to military, commercial and civilian traffic over the city.

He was looking at a bright star when something moved in his left peripheral vision. What he saw first was not the object but a dark grey cloud "phasing into his sight" — stationary, and strange-looking, as if pixelated or distorted. Then a steady red light appeared at the bottom front point of a solid black triangle coming out of the cloud, and the object widened as it emerged until he could see the whole equilateral shape with a red light at each corner.

He estimated it was as large as the car park he was standing in, and three to five storeys thick, at maybe 3,000 to 5,000 feet. It moved at first at about the speed of a helicopter. Then, in his account, it accelerated almost instantaneously to what he guessed was Mach 1 or 2 and turned south. Around it he could see waves radiating outward, which he compared to the mirage shimmer above a hot road.

It banked 90 degrees onto its left side, all three lights still visible, while veering right — the wrong way round for an aircraft — then levelled off and was gone to the south. When he looked back at where it had come from, the grey cloud had vanished too. About a minute later he phoned his wife to tell her what had happened, and she said his voice sounded robotic, as though there were electronic interference on the line.

What the Four Accounts Have in Common

Read together, the four files line up on some points and diverge on others. Both matter, and the divergence is arguably the more reassuring of the two: these do not read like copies of one story.

What Could Explain Black Triangle Sightings?

There are serious conventional explanations for this class of sighting, and any honest treatment has to put them first.

On the electronic oddities — the robotic-sounding phone call, and a mechanical watch found running 25 minutes fast in a separate 2026 case in the same release — we would counsel patience. A dropped mobile call sounds robotic for entirely ordinary reasons. These are details worth recording, which is exactly what the FBI did, and nothing more than that yet.

Timeline of the Four Cases

Why These Files Matter

An FD-302 is not evidence that something flew over Colorado Springs. It is evidence that somebody told the FBI something, and the form itself says as much in a printed line at the bottom of every page: it contains neither recommendations nor conclusions of the FBI.

What has changed is the record. For decades the black triangle has been a folklore shape, carried by witness accounts collected by private research groups and impossible to check. These files put four accounts into the government's own paperwork, with dates, agents, procedure and illustrations, and release them to the public. That is a different kind of document from a report on a website, and it is the first time this particular shape has been documented this way at scale.

The wider release these came from is covered in our breakdown of the Pentagon's fifth UFO file release. For the most famous mass triangle sighting in the United States, see the Phoenix Lights, and for the primary documents themselves, the UAP document archive.

Read the Files Yourself

All four interview records and the accompanying renderings are public domain and free to download from war.gov/ufo, catalogued as FBI-UAP-D024 to D031 in Release 05. The witness names, precise dates and some locations are redacted, which is standard for FD-302 material.

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