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Answered 2020-11-19 17:42:36

More than 80% of the ocean remains unexplored.

One of the biggest challenges of ocean exploration comes down to physics. Dr. Gene Carl Feldman, an oceanographer at NASA’s Goddard Space Flight Center, explains that the ocean, at great depths, is characterized by zero visibility, extremely cold temperatures, and crushing amounts of pressure.

“In some ways, it’s a lot easier to send people into space than it is to send people to the bottom of the ocean,” Feldman told Oceana. “The intense pressures in the deep ocean make it an extremely difficult environment to explore.”

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Answered 2009-04-16 03:27:32

I believe around ten percent of the upper most part of the ocean has been explored and ninty percent remains.

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