150+ Astronomy Trivia Questions and Answers

AlexanderByAlexander Morillo Hours

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.

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.

  1. The closest planetary system to the solar system is Alpha Centauri: True or false?
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    • True
    • False
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  2. The coronagraph is a device that attaches to a telescope and, by blocking the light from a central object, makes it possible to observe dimly lit objects near a star: True or false?
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    • True
    • False
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  3. The dwarf planet Ceres is located on:
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    • The Oort Cloud.
    • The Kuiper belt.
    • The Asteroid Belt.
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  4. The dwarf planet Ceres is located on:
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    • The Kuiper belt.
    • The asteroid belt.
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  5. The dwarf planet Pluto is located in the asteroid belt of the solar system: True or false?
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    • True
    • False
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  6. The Eagle Nebula is part of the astronomical object catalogued as M1: True or false?
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    • True
    • False
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  7. The four planets closest to the Sun are known as terrestrial or rocky planets: True or false?
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    • True
    • False
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  8. The largest planets in the solar system, Jupiter and Saturn, are composed mainly of helium and hydrogen: True or false?
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    • True
    • False
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  9. The Leonids are a meteor shower that occurs every year and reaches its highest intensity every:
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    • 27 years.
    • 33 years.
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  10. The Moon moves away from the Earth by 3.8 centimeters a year: True or false?
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    • True
    • False
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  11. The name of the first Soviet space station was Skylab: True or false?
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    • True
    • False
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  12. The Narwhal is also called "The Marine Unicorn.": True or false?
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    • True
    • False
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  13. The only spacecraft that ever visited Pluto (2015) is New Horizons: True or false?
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    • True
    • False
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  14. The parsec is a unit of length used in astronomy: True or false?
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    • True
    • False
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  15. The parsec is the unit of length used to calculate astronomical distances in the universe: True or false?
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    • True
    • False
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  16. The planet Earth and the solar system are in the Andromeda galaxy: True or false?
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    • True
    • False
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  17. The planet Mars has a larger surface area than Earth: True or false?
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    • True
    • False
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  18. The planet that has the most gravity is Earth in all Solar System: True or false?
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    • True
    • False
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  19. The planetary nebula forms when a star the size of the Sun comes to an end: True or false?
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    • True.
    • False, that's when white dwarfs come to an end.
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  20. The rainbow is composed of 9 fundamental colors: True or false?
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    • True.
    • False, it has 7 colors.
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  21. The solar system was formed by the gravitational collapse of a molecular cloud: True or false?
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    • True
    • False
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  22. The Sombrero galaxy is a lenticular galaxy in the constellation of Leo: True or false?
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    • True
    • False
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  23. The star closest to Earth after the sun is known as Proxima Centauri: True or false?
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    • True
    • False
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  24. The star Sirius is colloquially called "Dog Star": True or false?
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    • True
    • False
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  25. The Sun concentrates 99.75 % of the mass of the solar system: True or false?
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    • True
    • False
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  26. The Sun is composed mostly of hydrogen: True or false?
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    • True
    • False
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  27. The Sun is composed of 75% of:
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    • Oxygen
    • Hydrogen
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  28. The unit of light year, what physical magnitude does it measure?
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    • Weather
    • Distance
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  29. There are 7 liters of blood in the body of an adult human: True or false?
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    • True.
    • False, there are approximately 5 liters.
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  30. There are four gas giants in the solar system: True or false?
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    • True
    • False
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  31. There are four rocky planets in the Solar System: True or false?
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    • True
    • False
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  32. There are two planets in our Solar System that don’t have moons: True or false?
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    • True
    • False
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  33. Titania is the largest satellite of:
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    • Uranus
    • Neptune
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  34. Titania is the name of Saturn’s largest moon: True or false?
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    • True
    • False
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  35. Triton is the largest satellite in:
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    • Uranus
    • Jupiter
    • Neptune
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  36. Up to what element can a star perform the process of nuclear fusion?
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    • Titanium
    • Silicon
    • Iron
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  37. Vega is the main star in the constellation Lyra: True or false?
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    • True
    • False
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  38. Venus has two moons as well as Mercury: True or false?
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    • True
    • False
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  39. Venus is the closest planet to the Sun: True or false?
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    • True.
    • False, it's Mercury.
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  40. Venus is the closest planet to the Sun: True or false?
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    • True
    • False
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  41. Venus is the smallest planet in the solar system: True or false?
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    • True
    • False
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  42. What are the so-called rocky planets of the solar system?
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    • Mercury, Venus, Earth and Mars
    • Jupiter, Saturn, Uranus, Earth and Mars
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  43. What celestial body is more volcanic than the Earth?
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    • Titan
    • Miranda
    • ÍO
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  44. What do the measurements indicate about the expansion of the universe?
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    • It's accelerating.
    • It's receding.
    • It's stopping.
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  45. What gives Mars its reddish appearance?
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    • The predominant copper oxide on its surface.
    • The predominant iron oxide on its surface.
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  46. What is Neptune's twin planet?
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    • Mars
    • Uranus
    • Saturn
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  47. What is the brightest star in Canis Minor?
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    • Sirius
    • Procyon
    • Gamma Cassiopeiae
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  48. What is the coldest object in the solar system?
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    • Galatea
    • Triton
    • Nereida
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  49. What is the hottest planet in the Solar System?
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    • Mars
    • Venus
    • Mercury
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  50. What is the largest and heaviest meteorite?
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    • Hoba
    • Allende
    • Willamette
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Alexander

I'm passionate about languages. I work with translations, real-time language interpretation and write articles. On This Quiz I publish mostly history, movie and general knowledge quizzes. You can write to me: send me an email

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