the Thresher disaster

The Thresher disaster occurred in 1963 when the USS Thresher, a nuclear-powered submarine, sank during a deep-sea test off Massachusetts. A series of technical failures and possible design flaws led to a catastrophic implosion, causing the submarine to break apart underwater. All 129 crew members onboard tragically lost their lives. The incident highlighted the importance of rigorous safety measures in submarine design and operation, prompting widespread reviews of submarine safety standards to prevent similar accidents.