UTTR detonations
The Air Force detonates a solid-rocket motor June 2, 2015, at the Utah Test and Training Range in Utah. A series of large detonation operations will begin in early August and last through the end of September 2018 at the range. The destruction of the motors is occurring to eliminate aged propellant, and as part of international treaties to reduce the number of ballistic missiles. (U.S. Air Force photo by R. Nial Bradshaw)

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Photo by: R. Nial Bradshaw |  VIRIN: 150602-F-OD616-0001.JPG