NATIONAL HARBOR, Md. — The Pentagon plans to end procurements of very large geosynchronous Earth orbit (GEO) infrared satellites that provide initial warning of ballistic missile launches anywhere on the globe. Over the coming years DoD will start transitioning to a proliferated architecture of smaller satellites in lower orbits, officials said Sept. 21. 

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Sandra Erwin writes about military space programs, policy, technology and the industry that supports this sector. She has covered the military, the Pentagon, Congress and the defense industry for nearly two decades as editor of NDIA’s National Defense...