Why Is Earth's Inner Core Solid When It's Hotter Than The Sun's Surface?

Even when you’re composed mostly of liquid iron, sometimes you can’t take the pressure.
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The Sun PVEducation

Earth's Core Is Hotter Than the Sun's Surface – Australian

Study of Earth's inner core reveals a 'planet within a planet

Earth's core may have hardened just in time to save planet's

The Conversation: How Has the Inside of the Earth Stayed as Hot as

A recent study has found that certain groupings of iron atoms in

How Much Longer Until the Core of the Earth Runs Out of Fuel

Why is the core of the sun hotter than its surface? - Quora