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What is the earth's inner core made of?

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The Earth's inner core is the Earth's innermost part. It is primarily a solid ball with a radius of about 1,220 kilometres (760 miles), which is about 70% of the Moon's radius. It is composed of an iron–nickel alloy and some other elements. read more

Earth's inner core is made mostly of iron and nickel, but 5 percent of it has been a mystery for a long time. This new study concludes that it's most likel Just recently, scientists discovered a continent-sized liquid metal “dragon” making its way around the Earth’s outer core. read more

Earth's core is the deepest, hottest layer, and it's made up of two layers itself: the outer core which borders the mantle and the inner core, which is a ball-shaped layer made almost entirely of metal. read more

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