Avatar director James Cameron prepares for 7-mile solo dive into Pacific Ocean's Mariana trench

The director has just completed a test dive of five miles in Papua New Guinea, using his solo submersible Deep Sea Challenger. No one has visited the bottom of the Mariana trench for 50 years. Read More Home | Mail Online http://www.dailymail.co.uk/home/index.html?ITO=1490

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