https://www.airandspaceforces.com/tag/national-space-defense-center/
National Space Defense Center Archives | Air & Space Forces Magazine
national space defense centerair forcesarchivesmagazine
https://www.airforcetimes.com/news/your-air-force/2018/02/19/national-space-defense-center-begins-24-hour-operations/
National Space Defense Center begins 24-hour operations
Aug 18, 2022 - The National Space Defense Center at Schriever Air Force Base in Colorado is now in full operation.
national space defense center24 hourbeginsoperations