20 BEST Astronomy Quiz Questions

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From famous astronauts to facts about planets and stars, these astronomy quiz questions will test even the keenest space enthusiast.

astronomy quiz
This astronomy quiz will challenge the biggest stargazers

Are you a keen stargazer? Can you name the planets in the Solar System? How about the many moons of Saturn…? If you’re looking for a challenge and are willing to go to infinity and beyond to test your knowledge of astronomy, then this is the quiz for you!

planets
How well do you know the planets? These astronomy trivia questions will test that!

Looking for the best astronomy trivia questions and answers?

Our astronomy trivia questions will test your grasp of space science. While you might know what a solar eclipse is, can you name the brightest object in the night sky or define a light year? Will you show yourself as a shining star or will you be just one of many?

We will ask you about important moments in space travel, facts about the different planets in the Solar System and stats about significant objects in space. Some of these astronomy trivia questions will test you on well-known facts, while others will test your knowledge on new science.

Perhaps you know your phobos from your big dippers, space junk from morning stars, and love nothing more than to study the stars. If so, you’re going to absolutely relish this challenge!

night sky filled with stars
If you love looking at the night sky filled with stars, this astronomy quiz is for you

There are 20 astronomy quiz questions in total with a choice of 4 answers for each. Only one is correct, so choose wisely and may the force be with you!

rocket going to space
Time to blast off! Best of luck!

Astronomy Quiz Questions

1. 
The existence of black holes was predicted by which eminent scientist’s ‘Theory of General Relativity’?

2. 
A total solar eclipse occurs when…

3. 
Neil Armstrong became the first person to step foot on the Moon in 1969 followed by Buzz Aldrin, but what was the name of their third crewmate who remained in the Apollo 11 command module?

4. 
After the Moon, what is the brightest object in the night sky?

5. 
Saturn is the planet with the most moons in the Solar System. How many moons does it have?

6. 
The main asteroid belt in our solar system lies between the orbits of which 2 planets?

7. 
Dwarf planets are smaller planets with similar objects present in their orbit of the sun. Which of the options below are dwarf planets in our Solar System?

8. 
A light year is the distance travelled by light in how many Earth years?

9. 
The atmosphere of Mars is a lot thinner than on Earth and is made up of 2.8% nitrogen, 2% argon, less than 1% oxygen and 95% of which other gas?

10. 
Our planet sits within the Solar System which sits within a galaxy. What is this galaxy called?

11. 
Our Solar System is 4.6 billion years old, but how old is the Earth?

12. 
Which country was the first to travel in space?

13. 
Halley’s Comet is the most famous comet orbiting the Sun and can be seen from Earth every 76 years. When will Halley’s Comet next return to our skies?

14. 
Which planet in the Solar System is furthest from the Sun?

15. 
Which planet is known for its distinctive red spot caused by an anti-cyclone?

16. 
Which is the smallest planet within our solar system?

17. 
What is Syzygy?

18. 
The coma, tail and what make up the three main parts of a comet?

19. 
What is the name given to the times of year when day and night are of equal duration?

20. 
Out of all planets in the solar system, which has the most volcanoes?

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Plan your own quiz night

quiz books

If you’re looking for some recommendations, these are a few of our favorite quiz books to buy. We use these when planning fun trivia nights with family and friends!

  1. Ultimate Quiz Night
  2. Quiz Master
  3. The Big Pub Quiz
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Are you looking for the next astrophysics quiz or do you want to gloat in glory?

Did you reach for the stars and get every answer correct or do you need to pay more attention to what you can see from your bedroom window? Even if you’re an amateur astronomer, we bet you’ve learned some interesting things!

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