UFO Sighting Report — Houston, Texas, December 4, 1953

This document contains a Project Blue Book sighting report from December 4, 1953, regarding an incident in Houston, Texas. A civilian witness, described as a 45-year-old building contractor, reported observing five bright objects moving in an irregular formation while gaining altitude. The observation lasted between five and eight minutes under clear, cool weather conditions. The official conclusion reached by the evaluating agency, ATIC, was that the objects were balloons, specifically noting they were similar to pillow or cluster balloons. The report includes standard military teletype formatting, listing various Air Force commands as recipients. An investigator noted that while the sighting could have been mistaken for a mock aircraft attack, no aircraft were in the area at the time. The witness was characterized as a careful observer who was not easily influenced and not susceptible to hysteria, having made similar reports in the past. Additionally, the document includes a separate, unrelated entry from a Hydrographic Bulletin dated December 8, 1953, regarding a report from the Danish vessel MS Arnold Maersk. The ship's crew observed luminous light waves in the Gulf of Siam, which were described as pulsating rapidly and lasting for 15 minutes, occurring under overcast weather conditions.