Ocean explorers filmed the deepest known shipwreck for the first time. The Japanese Navy sunk the World War II battleship in 1944. It is now on the ocean floor, 6,456 metres deep. The film crew went down to that depth in a special submarine that can work in the deep-sea pressure. The filming happened in two eight-hour dives.
The lead explorer was in the US Navy. He is an adventurer. He is the first person ever to get to the top of all the world's continents, both poles, and the bottom of all the world's oceans. He said: "As a US Navy officer, I'm proud to have helped bring clarity and closure to the [battleship]."