View of our ROV Deep Discoverer exploring at the depth of 6,000 meters in the Mariana Trench. Never-before-seen geological features reminiscent of the Alps and canyons in California stunned participating scientists on the ship and on shore.
Deep Discoverer in the Mariana Trench
Image courtesy of the NOAA Office of Ocean Exploration and Research, 2016 Deepwater Exploration of the Marianas. Download larger version (jpg, 334 KB).

View of ROV Deep Discoverer exploring at the depth of 6,000 meters in the Mariana Trench.

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