Project Blue Book Case File
Bethesda, MarylandJune 1953
Summary
Two civilian observers in the Bethesda, Maryland area reported seeing an unidentified oval object on the evening of June 3, 1953, at approximately 1915 hours (7:15 p.m.). The object moved generally from north to east across the sky and remained visible for about one hour. Neither observer heard any sounds or saw any trails coming from it.
The object appeared very high in the sky and had a bright surface that reflected sunlight. One witness estimated it was twelve to fourteen inches in diameter. It moved in a steady arc without making any unusual maneuvers, though it did disappear behind scattered clouds several times before reappearing. The witnesses noted that while it moved too fast to be a star, it had some characteristics similar to a balloon.
The Air Force's Air Technical Intelligence Center (ATIC) suspected the object may have been a weather balloon. Investigators checked local balloon launching stations, including Andrews Air Force Base, the U.S. Weather Bureau in Washington, and the Navy's Anacostia station. They found that Silver Hill Observatory had released a weather balloon of a new Navy plastic type at 1700 (5 p.m.) EDT on June 8th. Air Force officers at Andrews had observed this balloon at an estimated fifteen thousand feet using a theodolite (a surveying instrument used to track objects), and meteorologists recorded detailed wind measurements aloft from one thousand to forty thousand feet.
The Air Force concluded the sighting was probably a balloon. The scanned case file is reproduced below as held by the National Archives, spanning 8 pages.
Reported location
Bethesda, Maryland
Date of incident
June 1953
State / country
MD / US
Page count
8 scanned pages
USAF evaluation
unknown
Microfilm
T1206, Roll 18