🇺🇸 USAF — Project Blue Book
A disc-shaped object was observed near Moscow in 1958. According to a report from Radio Moscow, the object performed a spiral at low altitude before taking off and disappearing into the sky. Although it might initially resemble a UFO, it was concluded to be a Soviet aircraft with a round wing. This type of aircraft was noted for its stability and maneuverability, with specialists suggesting it could play a significant role in future aviation. The report, under Project 10073, was prepared by a U.S. Air Force officer and archived as part of surveillance on sightings in the Soviet Union.