Delta Mariner docks at Vandenberg
A cargo ship, the Delta Mariner, prepares to offload rocket components at Vandenberg Air Force Base’s dock, April 6, 2017, Vandenberg Air Force Base, Calif. The Delta Mariner made its way from a production facility in Decatur, Ala., to deliver a United Launch Alliance Delta IV rocket, scheduled to launch in 2017. (U.S. Air Force photo by Senior Airman Ian Dudley/Released)

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Photo by: Staff Sgt. Shane Phipps |  VIRIN: 170412-F-DB561-001.JPG