Watch OPERATION HIBAL: AIR FORCE HIGH ALTITUDE BALLOON SAMPLING, 1966

Experience the American Journey through our country's visual heritage in this historical recording provided by the National Archives of the United States. A color documentary from the USAF Special Film Project series. DEPICTS USE OF HIGH ALTITUDE BALLOONS TO SAMPLE AND STUDY AIR FOR MEASURING RADIOACTIVE DUST. SHOWS A TYPICAL SAMPLING MISSION INCLUDING PLANNING, LAUNCHING, TRACKING AND BALLOON RECOVERY. This historical recording from the National Archives may contain variations in audio and video quality based on the limitations of the original source material. The content summary for this video is adapted from an historical description provided by the government agency or donor at the time of production release.