Historic Ship Nautilus (SSN 571) "gets underway" Oct. 15, 2021, for scheduled preservation maintenance onboard Naval Submarine Base New London in Groton, Conn. Nautilus, the world’s first nuclear-powered submarine and current Submarine Force Museum centerpiece, will begin an estimated $36 million preservation project that is expected to be completed in six to eight months. (Navy video by Chief Petty Officer Joshua Karsten)