Don Walsh
Don Walsh (November 2, 1931 – November 12, 2023) was an American oceanographer, U.S. Navy officer, and marine policy specialist. While aboard the bathyscaphe ''Trieste'', he and Jacques Piccard made a record maximum descent in the Challenger Deep on January 23, 1960, to . Later and more accurate measurements have measured it at .
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Published: 2019.