Project Mogul Balloon Program Records

Type: Declassified Military Program Documents

Source: U.S. Government (Declassified)

The Project Mogul records document a Top Secret US Army Air Forces program (1947–1949) that used high-altitude balloons to detect Soviet nuclear tests via acoustic sensors. Official documentation, including the 1994 Air Force Report and declassified summaries, confirms these balloons were the source of debris recovered at Roswell in July 1947.