What’s Up There, Where Is It, and What’s It Doing?
The U.S. Space Surveillance Network
Washington, D.C., March 13, 2023 – The 65-year U.S. effort to detect and track objects in space, from the days before Sputnik 1 to today’s much more crowded orbital environment, is the subject of a fascinating new article and briefing book posted today by the National Security Archive.