Spherical UFO seen over the Pacific in 1958

Summary

A round, silver object was spotted at high speed and altitude over the Pacific in 1958. The sighting occurred on November 20 at 14:15 local time and was observed for 15 seconds by a witness in an aircraft. Although initially considered a meteor due to the time of day, the data did not allow a definitive evaluation. The object's description and behavior raised doubts about its nature, with considerations toward a weather balloon or an astronomical phenomenon.