🇺🇸 USAF — Project Blue Book
In October 1956, a Canadian pilot reported a luminous object moving rapidly from east to west. The object, round and burning with an intense light in a light green color, left a trail surrounded by smoke. Despite its appearance resembling a flare or rocket, the movement and speed made these explanations unlikely. Researchers concluded it could be a meteor, though other possibilities were not ruled out.
The pilot's description was transmitted through military channels, and although no photos were taken and no further information was available, the report highlighted the intensity of the light and trajectory. This case is an example of how unknown aerial sightings were documented during the Cold War, with a focus on ruling out conventional explanations.