Scientists just made a discovery that sounds like pure science fiction—a massive hidden ocean, locked deep beneath our feet. This underground sea isn’t like the lakes or rivers we know, it’s buried hundreds of miles down in the mantle, inside special minerals that trap water like a sponge. Imagine, it could hold more water than all the surface oceans combined, reshaping what we thought we knew about Earth. What if the secret to earthquakes, volcanoes, and even plate tectonics has been hiding in this buried ocean all along?

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