This quiz sticks strictly to the planets of our solar system, from rocky inner worlds to the giant outer worlds. Expect questions on rings, moons, rotation, atmospheres and standout planetary features.
It’s aimed at players who know the basics but want a few deeper checks on what makes each planet distinctive. If the solar system fascinates you, this is a solid place to test yourself.
Getting things ready...
1. Which planet spins on its side with an axial tilt of about 98 degrees?
2. Which planet has the largest volcano in the solar system, Olympus Mons?
3. Which planet has the shortest day, rotating in under 10 hours?
4. Which planet is closest in size to Earth?
5. Which planet is famous for the Great Red Spot?
6. Which planet has the most prominent ring system visible from Earth?
7. Which planet is the hottest in our solar system?
8. Which planet is furthest from the Sun?
9. Which planet has two tiny moons named Phobos and Deimos?
10. Which planet is the smallest of the eight recognised planets?
11. Which planet rotates in the opposite direction to most other planets?
12. Which planet lies between Saturn and Neptune in order from the Sun?