Nuclear-powered submarine

A nuclear-powered submarine is a vessel that uses a nuclear reactor to generate energy, powering its propulsion system and onboard systems. The reactor produces heat through nuclear fission, which is then converted into electricity. This enables the submarine to operate underwater for long durations—months or even years—without needing to refuel. Nuclear submarines are highly maneuverable, capable of traveling at high speeds, and have extended endurance compared to conventional diesel-electric submarines. Their quiet operation and long-range capabilities make them vital for strategic defense and stealth missions.