China's manned submersible Jiaolong surfaces after a dive in the Mariana Trench on May 30, 2017. Jiaolong dived to 6,699 meters during Tuesday's mission in the Mariana Trench. (Xinhua/Liu Shiping)
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China's manned submersible Jiaolong surfaces after a dive in the Mariana Trench on May 30, 2017. Jiaolong dived to 6,699 meters during Tuesday's mission in the Mariana Trench. (Xinhua/Liu Shiping)
