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A 9,700-pound drone with 28 lights on it set a 10-inch square down on the seafloor 16,863 feet off American Samoa, scooped out the metal lumps growing inside that square, and bottled the water just above them to test whether a radioactive gas can find mor
A massive deep-sea drone explores the seafloor near American Samoa, documenting polymetallic nodules and marine life at extreme depths.