Silvery UFO over Portland 1955

Summary

In July 1955, an observer in Portland, Oregon, saw a round, silver object that made no sound. The object remained stationary for three minutes before disappearing over a hill. Although the possibility of a balloon was considered, the reports agree that it was an aircraft. The lack of photographs and the object's motionless behavior created some confusion.

The report, classified under Project 10073, was reviewed by multiple military offices. Despite ruling out an astronomical explanation, no further investigation was authorized. The object's description and behavior suggest it could have been an unidentified aircraft or an experimental device. The ambiguity of the case makes it an interesting piece of UFO history from the 1950s.