Space & Planets Quiz

Space and Planets Quiz

Our solar system and the wider universe are full of facts that are easy to mix up. This quiz tests your knowledge of the planets, moons, stars, and the science of space, covering questions like which planet is the largest, why Mars looks red, what makes a star different from a planet, and how far light travels in a year.

The questions blend basic astronomy with the kind of trivia that comes up in classrooms and documentaries, from the rings of Saturn to the phases of the Moon and the order of the planets from the Sun. Every answer is checked instantly, so you learn the correct fact the moment you respond.

For curious minds of all ages

It suits students, teachers looking for a quick classroom warm-up, and families who enjoy learning together. Make your way through the questions, see your final score, and share it to see who in your circle knows the cosmos best. The quiz runs in your browser with no sign-up and saves nothing, so you can replay to push your score higher.