UFO seen in Denver in 1953

Summary

In March 1953, an observer in Denver, Colorado, spotted a luminous object that appeared larger than a full moon. The phenomenon lasted between 1 and 2 seconds and displayed green and red flashes, followed by a red tail with white and green flashes. The report classifies the event as likely a very bright meteor. The observer, located at Stapleton Airport's control tower, described the object as a "fireball" moving northeast and northwest before disappearing. Although initially considered a balloon or aircraft, weather data and visual details point to an astronomical phenomenon.

The official evaluation concluded it was an astronomical meteor, with no evidence of supernatural or unknown technology. The report includes weather and wind details at various altitudes, supporting the meteor hypothesis. The officer in charge deemed the sighting reliable, though the tower operator noted it was the largest he had ever seen. The case was archived without further investigation.