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Operation Hardtack 1 Nuclear Test
Researchers at the Lawrence Livermore National Laboratory posted hundreds of declassified nuclear test footage on the organization’s YouTube channel in order to digitize the archival films before they completely decompose in storage.
Operation Hardtack I was a series of 35 nuclear tests conducted by the United States from April 28 to August 18 in 1958 at the Pacific Proving Grounds. At the time of testing, the Operation Hardtack I test series included more nuclear detonations than the total of all prior nuclear explosions in the Pacific Ocean.
Video by Lawrence Livermore National Laboratory