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The ESPAStar-D bus that will be integrated into the Air Force Research Laboratory’s Navigation Technology Satellite-3. The bus, which will serve as the body of spacecraft, was built at Northrop Grumman’s facility in Gilbert, Arizona. NTS-3 is scheduled for launch in 2023. (Courtesy photo/Northrop Grumman)

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Photo by: Courtesy photo/Northrop Grumman |  VIRIN: 210428-F-F3963-1001.JPG