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Published on Mar 7, 2012
National Geographic Explorer-in-Residence and Filmmaker James Cameron has announced he will soon operate a one-man submarine 7 miles deep to the Pacific's Mariana Trench, the deepest point on earth. Cameron plans to spend as much as 6 hours on the ocean floor and will film and take specimens for scientific study. ➡ Subscribe: http://bit.ly/NatGeoSubscribe
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