We’ve managed to go hundreds of thousands of miles into space, but when it comes to the earth, we’ve barely scratched the surface. Our planet’s core is a magnificent mystery filled with secrets. It’s time to figure them out.

The Earth’s inner core is an extra hot solid ball that has a radius just 30% smaller than the Moon. Scientists figured out that most of the Earth’s mass is located towards the center of our planet. The temperature of the inner core is about 9800°F. While the melting point of pure iron is about 2,800°F, at the core, its melting point is around 11,000° F.

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