This space quiz covers our solar system and beyond: the eight planets, the largest moons, the first people in space and on the Moon, and telescopes such as Hubble and James Webb. A short fact follows every answer.

This page starts a game with the Space category already selected: 18 checked questions, 10 per round. It is free in any browser, with no download and no account, and it is part of the full Science Quiz, one of 50+ games on My MP Games.

How to Play the Space Quiz

  1. Pick a mode. Play vs Computer for an instant opponent, Local vs to share one phone or laptop, or Create room to send a friend a room code.
  2. Read the question. Both players see the same question and four answers at the same time.
  3. Tap your answer. Your choice locks in at once and turns green if it is right or red if it is wrong.
  4. Read the explanation. A short note explains the right answer before the next question appears.
  5. Score points. Every correct answer scores one point, even if both players get it. First to 6 points wins, or the higher score after 10 questions.

Sample Questions

  • What is the closest planet to the Sun?
  • Which planet is famous for its bright rings?
  • Who was the first human in space?
  • Which planet spins on its side, tilted about 98 degrees?
  • What is the largest moon in the solar system?
  • Which space telescope launched in 2021 observes in infrared?

Answers stay hidden until you play. Want a gentler round? Set Difficulty to Easy in Game options.

More Science Quiz Topics

Space Quiz card with a question and four answer buttons

Space Quiz FAQ

How many questions are in the space quiz?

18 questions. Each game draws 10 at random, and the first player to 6 correct answers wins.

Can I change the category or difficulty?

Yes. Open Game options before you start to choose any Science Quiz category and Easy, Medium, Hard or Mixed.

Do I see the right answer?

Yes. Right after you answer, your choice turns green or red, the correct answer is shown, and a short explanation appears.

Is it free?

Yes. It is free with no account and no download, on phone, tablet or computer.