A billion years may not sound young, but researchers estimating the age of the Earth’s core say it could be between 1 and 1.3 billion years old — which is at the lower end of previous estimates.
The Earth's core is younger than previously believed, according to new research
![The Earth's core is younger than previously believed, according to new research The Earth's core is younger than previously believed, according to new research](https://cnncentral.com/wp-content/uploads/2020/08/200824142016-earth-core-age-super-169-840x480.jpg)