The final 5%: Scientists have discovered the last element in the Earth’s core

It’s generally well known that the innermost part of Earth is made mostly of iron (about 85%). Nickel accounts for about 10%. That last 5% however, has remained a bit of a mystery.

A Japanese research team has been searching for that missing element for decades, and now believes that the final 5% is most likely made from silicon!!!

 

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