Triangular UFO observed in France

Summary

In May 2015, two witnesses in a moving vehicle observed a triangular object hovering stationary in the sky. The night was clear with the moon behind them, aiding visibility. While driving on National Road 2 near Silly-Le-Long, they noticed white and red lights that didn't seem to belong to an airplane or helicopter. The object had a flat V shape and remained visible for a few minutes before disappearing behind a curve. Although initially puzzling, the GEIPAN investigation revealed it was a small aircraft performing a landing exercise. The key was the "pivot effect," an optical phenomenon that makes a moving object appear stationary from certain angles. Despite this explanation, discrepancies in the witnesses' descriptions—especially regarding the lights and apparent size—raised questions about perception and memory. The case was classified as a misidentification with the aircraft, but the significant differences in observations were noted for further study on perception and memory issues.