UFO seen like a car in Pennsylvania

Summary

A young boy and his sister observed a luminous object in the sky for 20 minutes in February 1967. The object changed colors between yellow, orange, red, and green, and moved in a southeast to southwest direction. Initially thought to be Venus, its behavior didn't match that of a planet. The witnesses, who were not experts, insisted it was not an airplane or a reflection. The official investigation found no conventional explanations and ruled out aircraft or meteors. The informant, a seventh-grade student, noted he had seen similar phenomena before and lived near an air base. Despite the seriousness of his testimony, no clear explanation was found. The case was filed as unidentified.