Almost two decades ago, the news cycle was suddenly awash with stories of the Kursk. The Russian nuclear submarine was located in the Barents Sea when an explosion occurred during a routine test. After that, another explosion happened in rapid succession. And it wasn't long before the families and friends of those onboard were fearing for their lives. It's known as one of the most famous maritime disasters of all time; this is the story of what happened under the murky waters.