15
Health & Science1h 39m ago

Earth's inner core is an iron-rich ball as hot as the surface of the Sun, kept solid by immense pressure.

Earth's center

Who
N/A
What
Earth's inner core is an iron-rich ball as hot as the surface of the Sun, kept solid by immense pressure.
When
Mon, 13 Jul 2026 11:30:24 GMT · 1h 39m ago
Where
Earth's center ·
Why
The crushing pressure of the entire planet raises the temperature at which iron can melt, maintaining the inner core's solid state despite extreme heat.
The Frontline Impact

How this affects you

This finding clarifies the physical state of Earth's deep interior, influencing models of planetary formation and geodynamics.

Story chain

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