USS Nautilus (SSN-571) Nuclear Landmark. Visitors may tour the forward two compartments, with guidance from an automated system. Despite similar alterations to exhibit the engineering spaces, tours aft of the control room are not permitted due to safety and security concerns. USS Nautilus (SSN-571) USS "Nautilus" (SSN-571) was the world's first operational nuclear-powered submarine and the first submarine to complete a submerged transit of the North Pole on 3 August 1958. Sharing names with Captain Nemo's fictional submarine in Jules Verne's classic 1870 science fiction novel "Twenty Thousand Leagues Under the Sea", and named after another that served with distinction in World War
Jules Verne (crater) Jules Verne (crater) Jules Verne is a large lunar impact crater on the far side of the Moon, named after the French author. It is located to the west-southwest of the Mare Ingenii, one of the few lunar mares on the far side. To the southeast of Jules Verne is the crater Lundmark, while Koch is located to the south-southeast. To the northwest is the large walled plain Pavlov. Most of the interior floor of this crater has been flooded with basaltic lava, leaving a dark, low-albedo surface that is relatively level and flat. It is somewhat unusual for a