Dive #1349 of the Shinkai6500, 21 June 2013, was the first manned mission to the world's deepest known undersea volcanic vents: the Beebe Vent Field, ~5 km m (~3.1 miles) deep in the Cayman Trough of the Caribbean Sea. For further details, see http://www.theguardian.com/...
Aboard the sub were pilot Yoshitaka Sasaki, co-pilot Yudai Tayama, and UK scientist Dr Jon Copley (University of Southampton).
The dive took place during expedition YK 13-05 of the research ship RV Yokosuka, led by Prof Ken Takai of the Japan Agency for Marine-Earth Science and Technology (JAMSTEC), as part of the QUELLE 2013 ("Quest for the Limit of Life") round-the-world voyage of the ship.
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Video clips from scientific expeditions exploring undersea vents, new species of marine life, and the half of our planet that lies under 2+ miles of ocean.
A short talk; the promo for a free online course about exploring the ocean depths; and a student film shortlisted in the BLUE 2014 Emerging Filmmaker Awards.
Videos published as "supplementary information" in recent research papers from our ocean exploration. Each description here includes a link to its research paper.