A Hidden Ocean Beneath Earth: Scientists Reveal A Massive Water Reservoir Deep Underground

  • Publish date: Monday، 13 April 2026 Reading time: 1 min read
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Researchers have discovered that there is a huge reservoir of water at an approximate depth of 700 kilometers under the surface of the Earth, dispelling the long-held beliefs as to the location of the water on the Earth. This finding is not a liquid ocean, as on the surface, but is water that is caught in the minerals in the deep mantle. The discovery has important implications for the study of the formation of the Earth, its geological activity, and the long-term water cycle.