✉news ScienceSpace Policy first seen 5 h ago, last 54 min ago, peak #2
Space Force Retires Its Last Defense Support Program Satellites
Original: Defense Support Program: Space Force Retires Its Last DSP Satellites
The US Space Force has retired the final satellites of the Defense Support Program, the Cold War-era constellation that for decades provided early warning of missile launches using infrared sensors. The move marks the end of one of America's longest-running military space programs, with newer systems expected to take over the missile-warning mission.
Why now: The retirement ends a historic military space program that had operated for over 50 years, drawing attention to the transition to newer missile-warning satellites.
US Space ForceDefense Support ProgramUnited States
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