Home to eight planets and over 150 moons, our Solar System is full of celestial bodies orbiting the Sun. It is billions of years old and has continued to be studied for generations.
We’re always trying to uncover more about our Solar System, the galactic neighbourhood nestled on an outer spiral of the Milky Way galaxy. There’s still lots more to discover - but how much do you already know?
Take BBC Bitesize's super-hard Solar System quiz to find out. Good luck!
Images courtesy of NASA Image and Video Library
This article was published in October 2018 and updated in August 2026
