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Massive Underground Water Reservoir Discovered Deep in Earth's Mantle

7/28/2025

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Summary

Story summary

A groundbreaking discovery reveals a colossal underground reservoir of water, possibly surpassing all surface oceans, nestled 410 to 660 kilometers deep in Earth's mantle. This water, ensconced in minerals like ringwoodite, is vital for regulating ocean levels and shaping geological activity. Researchers are eager to explore the full extent and significance of this hidden ocean.

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Story summary

A groundbreaking discovery reveals a colossal underground reservoir of water, possibly surpassing all surface oceans, nestled 410 to 660 kilometers deep in Earth's mantle. This water, ensconced in minerals like ringwoodite, is vital for regulating ocean levels and shaping geological activity. Researchers are eager to explore the full extent and significance of this hidden ocean.