In the early 1950s, Marie Tharp began connecting dots to map the ocean floor, using sonar technology. Sonar detects underwater objects ... and sparkles with sunlight, making it difficult to ...
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'Dark oxygen' discovery: Study finds lumps of metal producing 'dark oxygen' on ocean floor"Dark oxygen" is being produced deep in the ocean, and scientists are baffled by the strange phenomenon, according to a new study. In science class, kids learn that plants need sunlight to do ...
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