Comments by "William Cox" (@WildBillCox13) on "What Scared Away an Expedition to the Mariana Trench?" video.

  1. It is the Marianas Trench. A trench associated with the Marianas island group.
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  2. For consideration: https://news.nationalgeographic.com/news/2014/05/140512-nereus-deep-sea-vehicle-lost-ocean-technology-science/
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