The Incredible Story of the H.L. Hunley: The World’s First Successful Combat SubmarineImagine a 40-foot iron tube, barely taller than a man is wide, powered by seven sailors hand-cranking a propeller while their commander peers through a tiny conning tower. That was the CSS H.L. Hunley — a desperate Confederate innovation born during the Civil War siege of Charleston. On the moonlit night of February 17, 1864, the Hunley made naval history. Slipping silently through the waters off Sullivan’s Isl

The Nuclear Nightmare Beneath the AtlanticUSS Thresher: The Day America Lost Its Most Advanced SubmarineApril 10, 1963. 220 miles east of Cape Cod.The USS Thresher, the U.S. Navy’s brand-new, state-of-the-art nuclear attack submarine, was on deep-diving trials after an overhaul. Aboard were 129 men — elite crew and civilian technicians — pushing her to the limit at over 1,000 feet.Communications with the rescue ship USS Skylark crackled through the underwater phone: “Minor difficulties… have pos