Which was the first planet to be born in our solar system?

A team of scientists determined that Jupiter is likely the first-born planet in our solar system.

The Washington Post reported back in 2017 that the declaration is based on an analysis of chemical compositions which offer deeper insight into how and when they separated into two groups.

The Post added the finding suggests the meteorite group separated around one million years after the solar system formed and stayed apart until about four million years post formation.