This Day in Naval History January 17, 1955First Nuclear-Powered Submarine Gets Underway“Underway on Nuclear Power!” – On this day in 1955, the first nuclear-powered submarine, USS Nautilus (SSN-571), got underway for the first time. With these words, Nautilus cast off her lines, steamed out of New London and into history! See the classic newsreel that showed off her new capabilities to the U.S. public in cinemas nationwide. See the birth of nuclear submarines, here on NavyTV.