UFO Sighted in France Classified as Common Phenomenon

Summary

On the night of August 11 to 12, 2012, a witness in Bois-Guillaume (France) observed an object in the sky. They described it as a dark triangle with three bright white circles at its vertices. The object moved silently at low altitude toward the west and disappeared after passing over a building's roof. The GEIPAN report concluded that it was Thai lanterns, as the movement matched the wind direction and the date was consistent with festive events. The witness noted unusual details, such as the lack of light at the center of the circles, similar to how lanterns appear when viewed directly. Additionally, the testimony suggests a misperception by the brain, interpreting isolated light points as a triangular shape. This fits the known phenomenon of "false shape perception," where the brain fills in gaps between lights to form familiar shapes.

The GEIPAN classified the case as B, indicating a common explanation. Although the witness insisted on a triangular shape, the analysis suggests it was an optical illusion caused by the lanterns. The description of a dark object with low contrast against the night sky also supports this explanation. In summary, a case that initially seemed unusual turned out to be a typical example of how the brain can misinterpret natural or artificial phenomena as unidentified objects.