Who Is Hamish Harding, the Billionaire Philanthropist Aboard the Missing Submarine? The adventure-seeker has supported causes from malaria eradication to cheetah repopulation. By Alexandra Tremayne-Pengelly
Are Diesel-Powered Submarines Better Than America’s Leading Nuclear Fleet? One such conventional boat is on record "sinking" a U.S. nuclear-powered sub. By Chris Roberts
Is This New Submarine the World’s Best Aquatic War Machine? The new 'Suffren' vessel can lob cruise missiles at land-based targets 620 miles away—and do it all while producing as much noise as "the ocean itself." By Chris Roberts
Russia’s New ‘Invisible’ Nuclear Submarines Will Be Undetectable to Enemy Forces By Mikhail Klikushin