DARPA Embarks On Quest To Revive Nuclear Space Propulsion

illustration of spacecraft above Earth
DARPA has commissioned Lockheed Martin and Blue Origin to design an operational spacecraft at the same time as an orbital demonstrator.
Credit: DARPA
A nebulously named “Deterrence Layer” is on the drawing board for the National Defense Space Architecture, and that could mean the return of a functioning U.S.-operated, nuclear-powered satellite in orbit by 2025 for the first time in 60 years. The need for the Deterrence Layer may depend on what...

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