+The **Inner Core** is the innermost layer of [Earth](/wiki/earth), a solid sphere of iron and nickel. Despite extreme temperatures, immense [Pressure](/wiki/pressure) keeps it from melting, forming a dense, metallic heart at our planet's center.
+## See also
+- [Outer Core](/wiki/outer_core)
+- [Mantle](/wiki/mantle)
+- [Geophysics](/wiki/geophysics)
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