Filmmaker James Cameron became the first person to complete a solo submarine dive to the ocean's deepest point on Monday near Guam. Cameron descended nearly seven miles to the Mariana Trench in a custom-built sub called Deepsea Challenger. He had hoped to spend several hours gathering scientific data on the ocean floor but was forced to surface when a hydraulic system controlling the sub's mechanical arm failed. Cameron said he saw very few lifeforms. "It was bleak," he said. "It looked like the moon."
Read more at National Geographic
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