How well do you know the universe? Test yourself with 150+ astronomy trivia questions about planets, stars and space. Reveal the options and check answers on the page.
How much do you remember about the planets, the stars and the universe beyond Earth? Explore over 150 astronomy trivia questions and answers collected from quizzes on This Quiz. Put your knowledge of the solar system, space exploration and astronomical phenomena to the test.
Try answering from memory before revealing the options, then check which answer is correct. You can explore a few questions during a short break or challenge a friend to see who remembers more about space.
You can reveal the options and check the correct answers directly on this page. Each question also links to its original quiz if you want to try a complete round.
Astronomy trivia questions and answers
Choose a question and make your best guess. Reveal the answer options when you are ready, then check the correct answer before moving on.
- A sunspot is a region of the Sun that has a lower temperature than its surroundings and intense magnetic activity: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Guess if these space facts are real or just a myth - A supernova is a star that experiments a fantastic increase in brightness, often due to an incoming gravitational collapse: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:QUIZ: If you get all the points, you can wear NASA t-shirt with pride - About 7.2 billion years ago, our Solar System appeared: True or false?
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- True
- FalseCorrect answer
Want more questions? Take the full quiz:Can you pass this not-so-easy Astronomy Quiz? - Aldebaran is the brightest star in the constellation Taurus: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Can you pass this not-so-easy Astronomy Quiz? - Almagesto is an astronomical treatise that contains the most complete star catalogue of antiquity: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Can you pass this astronomy test? If you can answer all 10 questions, I'll be shocked - An object whose diameter is between 100 µm to 50 m is considered:
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- An Asteroid.
- A Meteoroid.Correct answer
Want more questions? Take the full quiz:This is 100% the hardest Astronomy quiz you will take today - And the coldest?
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- Uranus
- Jupiter
- NeptuneCorrect answer
Want more questions? Take the full quiz:You can ace this astronomy quiz only if you are a true expert. Ready? - Approximately 30,000 light years from Earth, it lies at the center of the galaxy: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:80% of people fail this astronomy quiz. Can you answer all 15 questions? - Approximately how long ago did the sun form?
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- 4.6 billion years.Correct answer
- 5.2 billion years.
Want more questions? Take the full quiz:You can ace this astronomy quiz only if you are a true expert. Ready? - Being so cold, Neptune has the strongest winds of the Solar System: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:QUIZ: If you get all the points, you can wear NASA t-shirt with pride - Between Saturn and Neptune lies Uranus: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Can you pass this not-so-easy Astronomy Quiz? - Between the orbits of which planets is the asteroid belt located?
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- Mars and Jupiter.Correct answer
- Saturn and Uranus.
Want more questions? Take the full quiz:Can you pass this astronomy quiz with the highest score? - By what other name is the Andromeda galaxy known?
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- Spiral Galaxy M31.Correct answer
- Spiral Galaxy M33.
Want more questions? Take the full quiz:Can you answer these 10 Astronomy questions correctly? - By what other name is the constellation Orion known?
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- The Hare.
- The Hunter.Correct answer
- The Coachman.
Want more questions? Take the full quiz:You can ace this astronomy quiz only if you are a true expert. Ready? - Christiaan Huygens discovered Titan, Saturn's largest satellite: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Can you pass this astronomy test? If you can answer all 10 questions, I'll be shocked - Comet McNaught has been the brightest in the last forty years: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Guess if these space facts are real or just a myth - Comets come mainly from two places, which one isn't one of them?
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- Oort Cloud.
- Kuiper belt.
- Asteroid belt.Correct answer
Want more questions? Take the full quiz:This is 100% the hardest Astronomy quiz you will take today - Daedalus is a lunar crater located in the center of the hidden face of the Moon: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Guess if these space facts are real or just a myth - Deimos is the larger of the two moons of Mars and the closest to the planet: True or false?
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- True
- FalseCorrect answer
Want more questions? Take the full quiz:Guess if these space facts are real or just a myth - Despite being a large constellation, Draco has no particularly bright stars: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Guess if these space facts are real or just a myth - Do all the giant planets have rings?
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- YesCorrect answer
- No
Want more questions? Take the full quiz:This is 100% the hardest Astronomy quiz you will take today - Earth is the planet in the solar system that has the highest amount of oxygen in the atmosphere: True or false?
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- TrueCorrect answer
- False, it's Venus.
Want more questions? Take the full quiz:Only a real genius can score 15/15 in this Solar System Quiz - Echolocation is a kind of sonar that some animals use: True or false?
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- TrueCorrect answer
- False, it is known as bilocation.
Want more questions? Take the full quiz:Only 40% of people pass this Astronomy and Space Quiz - Einstein's formula E = mc2 calculates:
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- Energy of a resting body.Correct answer
- Speed of light.
- Weather.
Want more questions? Take the full quiz:Only 40% of people pass this Astronomy and Space Quiz - Enceladus is Saturn's sixth largest satellite: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Astronomy and space quiz. Can you score 15/15? - Enceladus is Saturn's third largest satellite: True or false?
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- True
- FalseCorrect answer
Want more questions? Take the full quiz:Guess if these space facts are real or just a myth - Europa is Jupiter's sixth natural satellite: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Astronomy and space quiz. Can you score 15/15? - Europa, Io and Ganymede are Saturn's natural satellites: True or false?
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- True
- FalseCorrect answer
Want more questions? Take the full quiz:I dare you to pass this astronomy quiz. Can you score 10/10? - Exoplanets orbit a star other than the Sun: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Astronomy and space quiz. Can you score 15/15? - First known person to propose the heliocentric model of the Solar System:
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- Hypatia of Alexandria.
- Aristarchus of Samos.Correct answer
- Nicolaus Copernicus.
Want more questions? Take the full quiz:I dare you to pass this astronomy quiz. Can you score 10/10? - Four stars form Orion's Belt: True or false?
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- True
- FalseCorrect answer
Want more questions? Take the full quiz:Can you pass this not-so-easy Astronomy Quiz? - Gus Grissom was the first NASA astronaut to visit the space twice: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:QUIZ: If you get all the points, you can wear NASA t-shirt with pride - Heliciculture refers to the breeding of land snails: True or false?
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- True.Correct answer
- False, is the sculupture.
Want more questions? Take the full quiz:Only 40% of people pass this Astronomy and Space Quiz - How long does a day last on Mars?
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- 1 day and 37 minutes.Correct answer
- 9 hours and 56 minutes.
- 17 hours and 14 minutes.
Want more questions? Take the full quiz:Astronomy and Space Quiz. Only 1 in 251 answer all 12 questions - How long does it take for Pluto to complete a turn to the sun?
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- 247 years.Correct answer
- 192 years.
- Two hundred years.
Want more questions? Take the full quiz:80% of people fail this astronomy quiz. Can you answer all 15 questions? - How long does it take sunlight to reach planet Earth?
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- 8 minutes and 20 seconds.Correct answer
- 7 minutes and 20 seconds.
- 6 minutes and 20 seconds.
Want more questions? Take the full quiz:Only a real genius can score 15/15 in this Solar System Quiz - How many moons does Mars have?
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- 1
- 2Correct answer
- 5
Want more questions? Take the full quiz:Can you pass this astronomy quiz with the highest score? - How many natural satellites does Mars have?
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- 2Correct answer
- 3
- 4
Want more questions? Take the full quiz:Only a real genius can score 15/15 in this Solar System Quiz - How many natural satellites does the planet Mars have?
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- 1
- 2Correct answer
- 4
Want more questions? Take the full quiz:Astronomy QUIZ questions. Ready for a real challenge? - How many planets in the solar system have rings?
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- 2
- 3
- 4Correct answer
Want more questions? Take the full quiz:Only a real genius can score 15/15 in this Solar System Quiz - How many planets in the Solar System have rings?
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- 1
- 2
- 4Correct answer
Want more questions? Take the full quiz:You can ace this astronomy quiz only if you are a true expert. Ready? - Hydra has a star forming the Summer Triangle: True or false?
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- True
- FalseCorrect answer
Want more questions? Take the full quiz:Astronomy and space quiz. Can you score 15/15? - In 2016, a study was published according to which a ninth planet may exist. Its provisional name is Phattie: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Astronomy and Space Quiz. Only 1 in 251 answer all 12 questions - In the center of the Milky Way there are black holes: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Astronomy and space quiz. Can you score 15/15? - In what year was the discovery of the dwarf planet Makemake announced?
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- 2005Correct answer
- 2006
- 2008
Want more questions? Take the full quiz:Can you answer these 10 Astronomy questions correctly? - In which hemisphere can we observe the Big Dipper throughout the year?
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- Southern
- NorthernCorrect answer
Want more questions? Take the full quiz:Can you pass this astronomy quiz with the highest score? - In which natural satellite is the Aitken Basin located?
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- Callisto
- The MoonCorrect answer
- Deimos
Want more questions? Take the full quiz:You can ace this astronomy quiz only if you are a true expert. Ready? - Is the Sun the only celestial body in the solar system that emits light of its own?
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- YesCorrect answer
- No
Want more questions? Take the full quiz:Astronomy and Space Quiz. Only 1 in 251 answer all 12 questions - Is Uranus the first planet discovered by a telescope?
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- YesCorrect answer
- No
Want more questions? Take the full quiz:This is 100% the hardest Astronomy quiz you will take today - It takes 8 minutes for sunlight to reach the Earth: True or false?
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- TrueCorrect answer
- False
Want more questions? Take the full quiz:Astronomy and space quiz. Can you score 15/15?
Turn these space trivia questions into a challenge
Pick ten questions and give yourself one point for each correct answer. For a harder challenge, write down your guesses before revealing the answer options. For a more relaxed round, read the options first and work through them at your own pace.
Playing with someone else? Take turns choosing questions and agree on your answers before checking the solutions. Keep track of the subjects that catch you out — they can help you choose your next quiz.
Pay attention to the wording, too. A question about a planet’s rotation asks something different from one about its orbit. Details such as “closest to Earth” or “largest in the solar system” can change what you need to consider.
Explore more astronomy quizzes
Ready to try a full set of questions? Browse our astronomy quizzes and choose your next challenge.
Explore questions about planets, stars, space missions and cosmic phenomena, or follow the quiz link beneath any question in this collection. Each full quiz gives you a separate challenge and a result to compare with your next attempt.
About this astronomy question collection
What subjects do these questions cover?
The collection brings together questions from astronomy quizzes on This Quiz. Topics include the solar system, planets, stars, space exploration and astronomical phenomena.
How do I check the correct answer?
Reveal the answer options beneath a question, then check which option is correct. You can do this without leaving the page. The link to the original quiz is there if you want to continue with a full round.
Can I use these questions for a space trivia night?
Yes. Choose a selection, read each question aloud and give everyone time to answer before revealing the solution. You can read out the options or keep them hidden for an extra challenge.
Do I need a telescope or specialist equipment?
No. These are knowledge questions that you can answer on the page. You do not need to observe the night sky or use any equipment to take part.
