Evolution of space, 2SOPS prepares for GPS III
Lt. Col. Stephen Toth, 2nd Space Operations Squadron commander, left, presents a coin to Johnathon Caldwell, Lockheed Martin Space vice president of navigation systems, for their support of the space mission at Schriever Air Force Base, Colorado, July 29, 2019. Schriever AFB solely operates the GPS constellation of over 30 satellites which provides worldwide precision, navigation, and timing services to approximately 4 billion users. (U.S. Air Force photo by Airman 1st Class Jonathan Whitely)

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Photo by: Airman 1st Class Jonathan Whitely |  VIRIN: 190729-F-UR189-1001.JPG