An investigation found that the USS Connecticut "grounded on an uncharted seamount," the 7th Fleet said. Eleven crew members were injured in the Oct. 2 collision.
A Defense Department official says nearly a dozen sailors were injured in the incident aboard the USS Connecticut. The U.S. 7th Fleet says the sub's nuclear power plant was not affected.
The sub went missing early Wednesday morning off the coast of Bali during a training exercise, and Indonesian military officials estimated the sailors would run out of oxygen early Saturday.
Submarine hobbyists are helping scientists in Montana do environmental research on the state's lakes. Researchers couldn't otherwise afford to rent subs, and it gives the hobbyists a sense of purpose.
The submarine had 44 crew members when it lost contact with Argentina's military. Its disappearance has prompted protests by family members of those on board.
Harbor seals use sensors in their whiskers to help discern predator from prey. It's all about the way the water whirls, say scientists who are now training computers to be better trackers, too.
Researchers said they located a German U-boat that went "on the run" from British forces as the war ended. The discovery ends speculation that Adolf Hitler used it to escape to South America.
The ARA San Juan disappeared last week off the coast of Patagonia. Argentine officials say that they can't confirm that satellite signals received over the weekend came from the sub.
Peter Madsen denies killing her, police say, maintaining that her death was an accident. Wall was researching a story in August on board a submarine he built.
In his first court appearance since his arrest, Peter Madsen said Kim Wall died when a hatch fell on her head. He also denied mutilating her body, which washed ashore later as a naked, headless torso.
Peter Madsen and the journalist set out alone in his submarine. Within days, the sub had sunk and Madsen had admitted that Kim Wall died aboard. Now, police say remains that washed ashore are hers.
Peter Madsen pushed off in his submarine with a Swedish journalist, but by the time he was rescued, she was gone. Now, he says she died onboard — but the admission is stirring even more questions.
You may have heard of the submarine adventure book, Twenty Thousand Leagues Under the Sea, but have you actually lived it? Dr. Robert Ballard has. The underwater explorer tells us what it was like to discover the Titanic and what's next for his underwater robots and submarines. Join us for a conversation with a modern-day Captain Nemo.