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Journey to the Bottom of Mariana Trench
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The DEEPSEA CHALLENGER begins its first 2.5-mile test dive off the coast of Papua New Guinea. (Photo: Mark Thiessen/National Geographic)
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Crews continue in-water testing in Papua New Guinea of DEEPSEA CHALLENGER. (Photo: Mark Thiessen/National Geographic)
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Swinging above the docks in Guam’s Apra Harbor is the Trieste, the submersible that took Don Walsh and Jacques Piccard on the first and only successful manned dive to the bottom of the Mariana Trench. (Photo: Thomas J. Abercrombie)
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Jacques Piccard and Don Walsh emerge from the bathyscaphe Trieste following their successful manned descent to the bottom of the Mariana Trench in January 1960. (Photo: Thomas J. Abercrombie)