Deep-sea explorers discovered two Japanese aircraft carriers that sank during the Second World War.
The aircraft carrier was one of the seven ships that fell in the middle of the battle. The battle in the middle was a major sea-air battle between the United States and Japan in 1942.
A Kaga ship was discovered last week, and the wreckage of another aircraft carrier, the Akagi, was discovered on Sunday.
Until now, no other ship sank in this battle has been found - the USS Yorktown in 1998.
This month's findings were made after a few weeks of searching by the crew based on the research ship Petrel.
The ship is owned by Vulcan Inc., founded by the late Microsoft co-founder Paul Allen.
The crew deployed an unmanned underwater vehicle (AUV) equipped with sonar, which helped to identify the location of Kaga and Akagi.