Earth's Inner Core Is as Hot as the Surface of the Sun

Scientists estimate the temperature of Earth's solid iron-nickel inner core to be around 5,200 degrees Celsius (9,392 degrees Fahrenheit). This extreme heat is a remnant from the planet's formation and ongoing radioactive decay.

Source

https://www.nationalgeographic.org/encyclopedia/earths-core/

Details

Published: March 29, 2026
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Scientific Earth Science Physics Earth Inner Core Geology Temperature Sun Planet

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