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Sunken World War II Aircraft Carrier Found by Deep-Sea Expedition

Known for deep-sea exploration efforts uncovering military ships in the past, Paul Allen's personal search team has helped to discover a lost aircraft carrier.

Video: Wreckage of WWII Aircraft Carrier U.S.S. Lexington Found in Coral Sea

The U.S.S. Lexington has finally been found, decades later and thousands of feet underwater.

The crew of Research Vessel Petrel (R/V Petrel), the exploration ship of billionaire and Microsoft co-founder Paul Allen, discovered the wreckage of the World War II-era aircraft carrier Monday. It was found about two miles below the surface of the Coral Sea and more than 500 miles off the eastern coast of Australia.

The Lexington is one of the first aircraft carriers built by the U.S. It went down in 1942 with 216 crewmembers and 35 aircraft on board, and it's finally been found.

Wartime Relics

Allen is the son of a WWII veteran, and the R/V Petrel team had been planning to locate the Lexington for about six months after they were given coordinates for where the sunken ship might be. For this, they retrofitted their 250-foot vessel, originally deployed to the Philippine Sea in 2017, with subsea equipment that can reach depths up to three and a half miles. (Read: "How Microsoft Billionaire Found Largest Sunken Battleship")

"We're dealing with an environment out here that is very harsh," Robert Kraft, Allen's director of subsea operations, told media. "It's thousands of meters deep and it's very unpredictable. We're putting, you know, a lot of electronics and high voltage down in very deep waters and sea waters where it shouldn't belong, and so that always presents challenges."

First commissioned as a battlecruiser, the Lexington was launched as an aircraft carrier in 1925. On May 4, 1942, the ship fought with the U.S.S. Yorktown against three Japanese carriers in the first carrier-on-carrier battle in history. The Lexington sustained multiple hits from bombs and torpedoes until succumbing on May 8. A secondary explosion had set uncontrollable fires raging through the vessel, triggering the call to abandon ship. The U.S.S. Phelps delivered the final torpedoes that finally sank the ship. (Read: "Wreckage of WWII-Era Warship U.S.S. Indianapolis Found After 72 Years")

With U.S. ships nearby, 2,770 crewmen and officers were rescued from the doomed vessel. Among them was the captain and his dog Wags, the ship's ever-present mascot.

Related: Discovering Musashi

Several ships went under along with the Lexington. The U.S.'s Sims and Neosho succumbed to the waters, and Yorktown sustained damages. The Japanese carrier Shōhō also went under, and the fleet carrier Shōkaku sustained significant damage.

The Battle of the Coral Sea halted a Japanese advance, and it also marked the first time two dueling ships never came within sight of each other.

Under the Sea

Allen's other expeditions have yielded discoveries. His team helped to find the U.S.S. Ward in November 2017, U.S.S. Indianapolis in August 2017, and the U.S.S. Astoria in February 2015. He also helped to find the Japanese battleship Musashi and the Italian destroyer Artigliere in March 2015 and 2017, respectively. (Read about how the billionaire's 300-foot yacht allegedly damaged protected coral reefs.)

Underwater footage shows the large guns and blast shields the carrier once brandished, as well as some airplanes strewn about the ocean floor. Three-quarters of a century submerged underwater has taken a toll on the once-seaworthy vessel, but it is doubtlessly a notable historical and archaeological find.

"It's kind of all this effort you've put in has paid off and for me, personally, I feel a bit of relief and I look forward to the next part of it, which is exploring the wreck," pilot and researcher Paul Mayer told media. "And then very soon after that, I look forward to going and looking for the next one."

A previous version of this story stated the U.S.S. Lexington was the first aircraft carrier casualty. Several other aircraft carriers were sunken before the U.S.S. Lexington. The previous version also misstated the U.S.S. Yorktown went down with the Lexington. The story has been updated.