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Learn why the Earth's core doesn't melt on .
While the mantle is mostly solid, a layer about 93 miles (150 kilometers) down is melty, new research finds.
The Earth's axis is shifting for a surprising reason
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If the Earth's core is so volatile, what stops it from cracking in half? - Quora
Explainer: Earth — layer by layer
The Earth's axis is shifting for a surprising reason
Structure of the Earth
Earth's core problem
If the Earth's core is so volatile, what stops it from cracking in half? - Quora
If The Earth's Core Is So Hot, Why Doesn't It Melt?