Produced by: Mohsin Shaikh
Mountains 100 times taller than Everest were found beneath Earth's surface, lying at the core-mantle boundary.
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These colossal formations, buried 1,200 miles deep, remained undiscovered for centuries due to their location.
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Formed from ancient oceanic crust, these mountains lie within Earth's thickest layer, the mantle, rich in magnesium-based rock.
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The discovery began in 1996 when scientists noticed earthquakes slowed at specific points beneath the Pacific Ocean.
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Utrecht University researchers believe these deep-Earth mountains are at least 500 million years old.
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Dr. Arwen Deuss, lead researcher, revealed that their exact purpose and formation remain largely unknown.
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Unlike Everest, these peaks cannot be climbed, as they exist entirely within Earth's depths.
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These formations sit at the core-mantle boundary, a critical zone influencing Earth's tectonic and magnetic activities.
The discovery reshapes understanding of Earth's inner layers, revealing hidden features that challenge existing knowledge.