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"You're looking at one of the most mysterious places on Earth. Not outer space. Not a distant planet. The ocean floor — right here on our own world." [FACT 1 — wide shot of the sunken ship] "Over three million shipwrecks are estimated to rest on the ocean floor. That's more lost vessels than any museum could ever hold. Each one — a frozen moment in history, swallowed by the deep." [FACT 2 — diver swimming closer] "The ocean covers 71% of our planet — yet we've explored less than 20% of it. We kn