Project Pluto

Project Pluto was a research and development program initiated by the United States during the late 1950s to early 1960s. It aimed to create a nuclear-powered cruise missile known as the "SLAM" (Supersonic Low Altitude Missile). The project was conducted by the Los Alamos National Laboratory and the Douglas Aircraft Company, and it sought to develop an unmanned vehicle that could travel at supersonic speeds and carry nuclear warheads over long distances.