The invention of nuclear submarines and aircraft carriers has significantly transformed naval warfare and maritime operations. Nuclear submarines were first developed in the 1950's, utilizing nuclear power to propel the vessel, which provided extended operational range and endurance compared to conventional diesel-electric submarines. This innovation allowed submarines to remain submerged for extended periods, offering enhanced stealth and strategic capabilities. This makes the only limit on how long a submarine can stay submerged food availability.

Robot submarines use advanced technology like artificial intelligence (AI) and powerful sensors.

Jacques Piccard was one of the men who achieved this goal, he not only achieved it but at the time he broke the record of the lowest recorded depth in the ocean (7 miles deep). They had descended for about five hours to reach a depth of  35,797 feet, at the bottom of the Mariana trench.

He designed one of the first recorded submarines.