✉news Science Space Policy first seen 2 d ago, last 1 d ago, peak #6

U.S. Deactivates Cold War-Era Nuclear Deterrence Satellites

Original: The U.S. deactivated DSP nuclear deterrence satellites

The United States has decommissioned its Defense Support Program (DSP) satellites, the long-serving infrared constellation built to detect missile launches and nuclear detonations. The satellites, launched since the 1970s, are being retired as newer Space Based Infrared System (SBIRS) spacecraft take over the deterrence monitoring mission, marking the end of a decades-old strategic early-warning program.

Why now: The retirement of key nuclear early-warning satellites raises questions about continuity of U.S. missile-detection capabilities.

United States Defense Support Program U.S. Space Force SBIRS

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The U.S. deactivated DSP nuclear deterrence satellites · Universe Space Tech

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