USS Dolphin (AGSS-555)

USS Dolphin (AGSS-555) was a U.S. Navy nuclear-powered submarine launched in 1976. Designed for research, reconnaissance, and training, it was equipped with advanced sonar and sensors. As a nuclear vessel, it could operate underwater for extended periods without surfacing, making it highly versatile and stealthy. Its missions included scientific experiments, underwater exploration, and supporting naval training. The submarine was decommissioned in 2007 and later scrapped, but it represented a significant technological achievement in submarine design and operation.