Nuclear submarine nuclear-powered submarine was first proposed in the United States Navy by the Naval Research Laboratory's Ross Gunn in 1939. Construction of the world's first nuclear powered submarine was made possible by the successful development of a nuclear propulsion plant by a group of scientists and engineers at the Naval Reactors Branch of the Bureau of Ships and the Atomic Energy Commission. In July 1951 the U.S. Congress authorized construction of the first nuclear-powered submarine, "Nautilus", under the leadership of Captain Hyman G. Rickover, USN (sharing names with Captain Nemo's fictional submarine in Jules Verne's "Twenty Thousand Leagues Under the Sea",
Jules Verne ATV targets for this Demo-Day were successfully met. The ATV made contact with "Zvezda"'s aft docking port at 14:45:32 UTC, starting a sequence of docking events that included mechanical capture and docking with the ISS a few minutes later at 14:52 UTC. After docking and leak checks were conducted, the ISS crew was able to enter the pressurised cargo module and access the ATV's cargo. "Jules Verne"<nowiki>'</nowiki>s liquid tanks were connected to the ISS, and their contents were transferred to the station. The crew manually released air components directly into the ISS's atmosphere. The ISS crew gradually replaced the ATV's cargo