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How is it that we didn't know why the ocean was salty until 1979? National Geographic Explorer-in-Residence Bob Ballard explains why such a basic question remained a mystery for so long—and where his team finally found the answer.
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Love crazy facts? We do too. Get ready to amaze your friends with some of the strangest facts you’ve ever heard. National Geographic explorers tell you new, obscure, and amazing things about the world (and beyond).
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TIL: Why Is the Ocean Salty? | Today I Learned