Final answer:
The USS Enterprise (CVN-65) was the world's first nuclear-powered aircraft carrier, commissioned in 1961 and marking a pivotal change in naval capabilities and strategy.
Step-by-step explanation:
The world's first nuclear-powered aircraft carrier was the USS Enterprise (CVN-65).
Launched in 1960 and commissioned on November 25, 1961, it was a revolutionary naval vessel for its time, using nuclear reactors to provide propulsion and operate the ship's systems for years without refueling, a landmark in maritime and military engineering.
This capability marked a significant shift in naval strategy and technology, as it allowed the Enterprise to operate without the limitations imposed by conventional fossil fuels.