Triangular UFO seen in Mans in 2010

Summary

In November 2010, a witness in the French city of Mans observed an unusual luminous phenomenon in the sky. While opening the window of his kitchen on the ninth floor, he noticed three lights (one red and two blue) forming a triangle approaching rapidly. The witness described a dark triangular shape outlined by these lights and heard a whistling sound. The object passed over his building and disappeared within seconds. Although the testimony was detailed and verified on site, there were no other witnesses. The GEIPAN classified it as D1, meaning unexplained due to its consistency and uniqueness.

The case stands out for its clear description and the absence of conventional explanations. Although the object's movement fit within what is possible for flying objects, its appearance did not match any known craft. The D1 classification reflects that, despite being a single observation, it contains elements that remain unexplained. Cases like this, though isolated, are valuable for analyzing phenomena that challenge conventional explanations.