In 1999, senior French defense officials published an unusual report on unidentified objects and national security. Its measured tone made it easy to miss just how far-reaching its conclusions were.
The Aliens editors
This story was put together by our editors from the original documents. Every quote, date and figure comes from the source files listed further down the page.
On January 28, 1994, an Air France flight from Nice to London was cruising at altitude. Captain Jean-Charles Duboc spotted a large, silent object off to his right that did not look like an airplane. Other crew members saw it, too. A few years later, that sighting became part of the COMETA Report.
COMETA was no gathering of mystery enthusiasts. Its report was written by people from within France’s national security establishment: senior officers, engineers, aviation researchers, and scientists. In 1999, they published a report titled “Unidentified Flying Objects and Defense: What Should We Prepare For?”
Its tone is cool. Almost clinical. That is part of its power.
The report does not claim to have all the answers. Nor does it pretend to prove an extraterrestrial origin. Instead, it examines cases one by one, including sightings investigated by the military, civil aviation, and research institutions. After considering more conventional explanations, it says the extraterrestrial hypothesis is, in its view, “the best scientific hypothesis.”
That is a precise formulation. Not certainty. Not a proclamation. An assessment.
Air France Flight 3532 departed Nice for London on January 28, 1994. According to the report, Captain Duboc saw an object that appeared very large and reddish-brown, tens of kilometers away. Its shape, as described, changed during the sighting.
The detail that takes the story beyond “eyewitness testimony alone” is the radar record. A French air traffic control center confirmed a brief radar track of a matching object, then lost it.
In cases like this, the question is not just whether the witness is credible. It is why several systems, human and technical, briefly point in the same direction and then offer no clear explanation.
The report proposed a joint European capability: collecting reports, sharing intelligence archives, directing civilians to a scientific body, and bringing significant cases into an organized international forum.
Almost none of this happened. France continued to document cases through the French National Centre for Space Studies, but Europe never established a broader system. The United States would take a similar step only years later, with the All-domain Anomaly Resolution Office.
The English translation of the report, as it appears in the collection, was sent to NASA officials in 2001. From there, it was preserved, passed between files, and eventually appeared in a batch of documents released to the public in 2026.
A reading today shows how little has changed. Even now, 27 years after its first publication, public debate still swings between excessive enthusiasm and reflexive dismissal. COMETA offers a third option: read, compare, and acknowledge what we don’t know.
Source: COMETA Report, NASA file 255_413270, published May 8, 2026.
