Space is one of the most exciting topics for kids to explore. From glowing stars and spinning planets to rockets, astronauts, and mysterious galaxies, the universe is full of incredible wonders. Trivia is a great way to spark curiosity, build science knowledge, and get kids asking big questions about the world around them. Whether you’re a teacher, parent, or just a young space enthusiast, these trivia questions are perfect for game time, learning time, or anytime!
Below you’ll find 80 fun and educational space trivia questions for kids, each with an easy-to-understand answer. Get ready to blast off!
1. What is the name of the galaxy we live in?
Answer: The Milky Way.
2. What is the closest star to Earth?
Answer: The Sun.
3. What planet is known as the Red Planet?
Answer: Mars.
4. What planet is the largest in our solar system?
Answer: Jupiter.
5. How many planets are in our solar system?
Answer: Eight.
6. What planet is closest to the Sun?
Answer: Mercury.
7. What planet is famous for its rings?
Answer: Saturn.
8. What is the name of Earth’s moon?
Answer: The Moon (sometimes called Luna).
9. How long does Earth take to orbit the Sun?
Answer: One year.
10. What force keeps planets in orbit around the Sun?
Answer: Gravity.
11. What do astronauts ride to get into space?
Answer: Rockets.
12. What do we call a group of stars forming a picture?
Answer: A constellation.
13. What is the hottest planet in the solar system?
Answer: Venus.
14. Which planet spins on its side?
Answer: Uranus.
15. What is the name of NASA’s famous space telescope?
Answer: The Hubble Space Telescope.
16. What do we call a rock that burns up when entering Earth’s atmosphere?
Answer: A meteor.
17. What is a meteorite?
Answer: A meteor that reaches the ground.
18. What do we call the path a planet takes around the Sun?
Answer: An orbit.
19. What planet is known for its big red storm?
Answer: Jupiter.
20. What is the name of the galaxy closest to ours?
Answer: The Andromeda Galaxy.
21. What does NASA stand for?
Answer: National Aeronautics and Space Administration.
22. What do we call a star that explodes?
Answer: A supernova.
23. What was the first animal to orbit Earth?
Answer: Laika the dog.
24. Who was the first person to walk on the Moon?
Answer: Neil Armstrong.
25. What year did humans first land on the Moon?
Answer: 1969.
26. What planet has the most moons?
Answer: Jupiter.
27. What planet is nicknamed Earth’s “twin”?
Answer: Venus.
28. What is the name of the dwarf planet in the asteroid belt?
Answer: Ceres.
29. What is the name of the dwarf planet once considered the ninth planet?
Answer: Pluto.
30. What do we call the boundary of our solar system?
Answer: The heliopause.
31. What is the name of our solar system’s star?
Answer: The Sun.
32. What are the small chunks of rock that orbit the Sun between Mars and Jupiter?
Answer: Asteroids.
33. What are dirty snowballs in space called?
Answer: Comets.
34. What is the bright tail behind a comet made of?
Answer: Gas and dust.
35. What is a light-year?
Answer: The distance light travels in one year.
36. What is the second planet from the Sun?
Answer: Venus.
37. What planet is known for its Great Dark Spot?
Answer: Neptune.
38. What planet has the shortest day?
Answer: Jupiter (about 10 hours).
39. Where do astronauts live in space?
Answer: The International Space Station (ISS).
40. What is the name of the spacecraft that carried astronauts to the Moon?
Answer: Apollo.
41. What do we call the Milky Way’s center?
Answer: A supermassive black hole.
42. What is space with no air called?
Answer: A vacuum.
43. What do stars produce that makes them shine?
Answer: Light and heat.
44. What color are the coolest stars?
Answer: Red.
45. What color are the hottest stars?
Answer: Blue.
46. What is the name of Mars’ two moons?
Answer: Phobos and Deimos.
47. What is the only planet known to support life?
Answer: Earth.
48. What galaxy type is the Milky Way?
Answer: A spiral galaxy.
49. What is the study of space called?
Answer: Astronomy.
50. What is the Sun mainly made of?
Answer: Hydrogen and helium.
51. What is the coldest planet in our solar system?
Answer: Uranus.
52. What are Saturn’s rings made of?
Answer: Ice, dust, and rock.
53. What planet is known as the Morning Star?
Answer: Venus.
54. What do we call frozen worlds beyond Neptune?
Answer: Kuiper Belt objects.
55. What galaxy type has no clear shape?
Answer: An irregular galaxy.
56. What do astronauts wear for spacewalks?
Answer: Spacesuits.
57. What is a shooting star really?
Answer: A meteor.
58. What is the biggest planet made mostly of?
Answer: Gas.
59. What planet has the tallest volcano in the solar system?
Answer: Mars (Olympus Mons).
60. What is the closest planet to Earth?
Answer: Venus.
61. What planet has a giant ice cap at its poles?
Answer: Mars.
62. How many moons does Earth have?
Answer: One.
63. What tool helps scientists see faraway stars and galaxies?
Answer: A telescope.
64. What is the name of Earth’s galaxy shape?
Answer: A barred spiral.
65. What is the name of Saturn’s largest moon?
Answer: Titan.
66. What are stars born inside?
Answer: Nebulas.
67. What is the famous “Hunter” constellation?
Answer: Orion.
68. What do astronauts experience instead of gravity?
Answer: Microgravity.
69. What do planets outside our solar system called?
Answer: Exoplanets.
70. Which planet has blue clouds and strong winds?
Answer: Neptune.
71. What’s another name for the North Star?
Answer: Polaris.
72. What is the Sun’s layer that you can see?
Answer: The photosphere.
73. What is the name of the first American woman in space?
Answer: Sally Ride.
74. What do you call the spinning of Earth on its axis?
Answer: Rotation.
75. What causes day and night?
Answer: Earth’s rotation.
76. What causes the seasons?
Answer: Earth’s tilt.
77. What is the hottest part of the Sun?
Answer: The core.
78. What planet has a moon called Triton?
Answer: Neptune.
79. What is the name for planets made of rock?
Answer: Terrestrial planets.
80. What is the name for planets made mostly of gas?
Answer: Gas giants.
Conclusion
Space is full of mysteries, discoveries, and exciting science waiting for curious minds to explore. These 80 space trivia questions for kids make it easy to bring learning to life through fun facts and big ideas about our universe. Whether you use them at home, in class, or during a trivia game night, these questions are perfect for getting kids excited about science, astronomy, and the world beyond our own planet. Keep looking up—the universe has so much more to show!
