Scientists know that when the universe came into being, not everything in it spontaneously appeared. How long has our solar system been around?
Astronomers find seven planets being 'fried' by their star
How Many Planets Are There In The Solar System? - WorldAtlas
Our Solar System is more crowded than you may realize, by Jason Foodman
How Old Is The Solar System? - WorldAtlas
How Old is the Solar System? - Universe Today
Our solar system's planets - Astronomy's Space & Beyond Box
The discovery of the Kuiper Belt revamped our view of the solar system
Solar System: Facts - NASA Science
Telescope detects galaxy's oldest known solar system, Science
Solar system, Definition, Planets, Diagram, Videos, & Facts