World’s largest ocean may lie below the ocean floor

June 14, 2014 11:43 PM

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A study in Science reveals that a massive reservoir of water — in its molecular form — may lie hundreds of miles below the earth’s surface and may hold more water than the earth’s oceans.

I spoke with the study’s coauthor and geophysicist at Northwestern University, Dr. Steven Jacobsen, in a conversation that looked at what researchers found and how they did it.

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