Proceedings Podcast Episode 130 - The First Deepest Dive
22 January 2020
On the 60th anniversary of the achievement, Naval historian Norman Polmar talks about the U.S. Navy's mission to reach the bottom of the Mariana Trench.
On the 60th anniversary of the achievement, Naval historian Norman Polmar talks about the U.S. Navy's mission to reach the bottom of the Mariana Trench.
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