QuizQuestions.Org

Space Quiz Questions

Journey through the cosmos with questions about our solar system, distant galaxies, space missions, astronauts, black holes, astronomical discoveries, and everything related to space and astronomy.

29 questions available

All Space Quiz Questions

29 questions available

1. Which planet is known as the Red Planet?

  1. Saturn
  2. Jupiter
  3. Mars
  4. Venus
Correct answer: Mars
Explanation: Mars is called the Red Planet due to its reddish appearance.

2. What is the largest planet in our solar system?

  1. Saturn
  2. Neptune
  3. Uranus
  4. Jupiter
Correct answer: Jupiter
Explanation: Jupiter is the largest planet in our solar system.

3. What is the closest planet to the Sun?

  1. Mars
  2. Venus
  3. Earth
  4. Mercury
Correct answer: Mercury
Explanation: Mercury is the closest planet to the Sun.

4. What year did the United States land the first humans on the Moon?

  1. 1969
  2. 1972
  3. 1961
  4. 1965
Correct answer: 1969
Explanation: The United States landed the first humans on the Moon on July 20, 1969, during the Apollo 11 mission.

5. What is the primary reason that Venus is hotter than Mercury, despite Mercury being closer to the Sun?

  1. Venus is larger than Mercury
  2. Mercury has no atmosphere
  3. Venus reflects more sunlight than Mercury
  4. Venus has a thick atmosphere that traps heat
Correct answer: Venus has a thick atmosphere that traps heat
Explanation: Venus is hotter than Mercury due to its thick atmosphere, which is primarily composed of carbon dioxide. This atmosphere creates a strong greenhouse effect, trapping heat. While it is true that Mercury has no atmosphere, it also does not retain heat well despite being closer to the Sun.

6. Which of the following statements about dwarf planets is true?

  1. They must be spherical in shape
  2. They orbit the Sun but are larger than Mercury
  3. They are all located in the asteroid belt
  4. They are not able to clear their orbit of other debris
Correct answer: They are not able to clear their orbit of other debris
Explanation: Dwarf planets, such as Pluto, are defined by their inability to clear their orbit of other debris, distinguishing them from the eight major planets. They can vary in size and are not restricted to a specific location in the Solar System.

7. How do astronomers determine the distance to galaxies using the Tying of Cepheid Variables?

  1. By observing the gravitational lensing effects caused by dark matter
  2. By counting the number of stars in the galaxy
  3. By analyzing the redshift of light emitted from galaxies
  4. By measuring the period-luminosity relationship of Cepheid variables
Correct answer: By measuring the period-luminosity relationship of Cepheid variables
Explanation: The period-luminosity relationship of Cepheid variables allows astronomers to determine their intrinsic brightness based on the time it takes to complete one cycle of brightness fluctuations. By comparing this intrinsic brightness to the observed brightness, they can calculate the distance to the galaxy. This method is crucial for measuring distances in the universe.

8. Which of the following statements best explains why most galaxies are found in clusters?

  1. Galaxies are attracted to the largest galaxy in the area
  2. Gravitational attraction between galaxies leads to their clustering
  3. Galaxies avoid regions of lower density
  4. Galaxies are formed in isolation and later come together
Correct answer: Gravitational attraction between galaxies leads to their clustering
Explanation: Galaxies are found in clusters primarily due to gravitational attraction. The mass of galaxies creates gravitational fields that pull nearby galaxies toward them, forming clusters over time. This understanding is essential in the study of galaxy formation and large-scale structure in the universe.

9. Would you rather be a space explorer or a space colonist?

  1. space colonist
  2. space explorer

10. ____ published a theory in 1543 where he announced planets revolve around the sun.

  1. Galileo
  2. Kepler
  3. Copernicus
  4. Newton
Correct answer: Copernicus
Explanation: Copernicus is known for his heliocentric theory, which positioned the Sun at the center of the universe, revolutionizing astronomy.

11. Which items were included on the Voyager Golden Record?

  1. Blueprints of the vehicle
  2. Music
  3. Photos
  4. DNA diagram
Correct answers: Music, Photos, DNA diagram
Explanation: The Golden Record includes music, greetings, and scientific information, but not Voyager’s blueprints.

12. Which space program first landed humans on the Moon?

  1. Apollo
  2. Skylab
  3. Gemini
  4. Sputnik
Correct answer: Apollo
Explanation: NASA’s Apollo program successfully landed humans on the Moon, starting with Apollo 11 in 1969.

13. The first artificial satellite launched into space was ______, by the Soviet Union in 1957.

  1. Vanguard 2
  2. Apollo 1
  3. Sputnik 1
  4. Sputnik 2
Correct answer: Sputnik 1
Explanation: Sputnik 1 was launched in October 1957, marking the start of the space age.

14. Which was the first planet visited by Voyager 2 after launch?

  1. Jupiter
  2. Saturn
  3. Neptune
  4. Uranus
Correct answer: Jupiter
Explanation: After launching on August 20, 1977, the first planet Voyager 2 visited was Jupiter. It arrived at Jupiter in July 1979, followed by a flyby of Saturn in August 1981, then Uranus in January 1986, and finally Neptune in August 1989.

15. The term "light-year" refers to:

  1. A measure of distance
  2. A measure of brightness
  3. A measure of time
  4. The speed of light
Correct answer: A measure of distance
Explanation: A light-year is a unit of distance, representing how far light travels in one year (about 9.46 trillion km).

16. Voyager 2 has already left the Solar System and entered interstellar space.

  1. True
  2. False
Correct answer: True
Explanation: Voyager 2 entered interstellar space on November 5, 2018, making it the second human-made object to leave the Sun's protective bubble, known as the heliosphere.

17. What’s the name of the Sun’s protective bubble that surrounds our solar system?

  1. Asteroid Belt
  2. Exosphere
  3. Heliosphere
  4. Oort Cloud
Correct answer: Heliosphere
Explanation: The solar wind of our sun creates a protective bubble that surrounds our solar system, called the heliosphere.

18. Launched in 2021, the ______ Space Telescope is designed to study the universe in infrared wavelengths and has honeycomb-like mirrors.

  1. Spitzer
  2. Hubble
  3. James Webb
  4. Kepler
Correct answer: Hubble
Explanation: The James Webb Space Telescope observes the universe primarily in infrared, succeeding Hubble in many areas.

19. When was NASA’s Voyager 2 spacecraft launched?

  1. 1985
  2. 1973
  3. 1977
  4. 1981
Correct answer: 1977
Explanation: Voyager 2 was launched on August 20, 1977, about two weeks before its twin, Voyager 1.

20. French astronomers discovered the lightest noble gas while observing a solar eclipse in 1868. What's the name of that gas?

  1. Fart
  2. Argon
  3. Methane
  4. Helium
Correct answer: Helium
Explanation: Helium is the lightest noble gas and was first identified during a solar eclipse; it actually gets its name from the Greek word 'helios,' meaning sun.

21. A day on Venus is longer than a _____ on Venus.

  1. decade
  2. month
  3. year
  4. week
Correct answer: year
Explanation: Venus takes 243 Earth days to rotate once but only 225 Earth days to orbit the Sun. So if you lived on Venus, you'd celebrate your birthday before the day ends!

22. Which planet in our solar system rotates sideways?

  1. Jupiter
  2. Neptune
  3. Venus
  4. Uranus
Correct answer: Uranus
Explanation: Most planets spin with their poles pointing almost straight up as they go around the Sun. But Uranus is tilted on its side about 98 degrees. So instead of spinning upright, it moves around the Sun rolling on its side.

23. There are more possible games of chess than there are _____ in the observable universe.

  1. stars
  2. galaxies
  3. planets
  4. atoms
Correct answer: atoms
Explanation: Interesting right!? The Shannon Number estimates 10^120 possible chess games, while there are "only" about 10^80 atoms in the observable universe.

24. Which planet could theoretically float in water?

  1. Neptune
  2. Jupiter
  3. Saturn
  4. Mars
Correct answer: Saturn
Explanation: Saturn's density is only 0.687 g/cm³, less than water's 1 g/cm³, so it would float! Of course, you'd need an impossibly large ocean, and Saturn would eventually dissolve, but theoretically it works!

25. The Moon is moving away from Earth at _____ centimeters per year.

  1. 2
  2. 3.8
  3. 4.6
  4. 12
Correct answer: 3.8
Explanation: The Moon drifts 3.8 cm away annually due to tidal forces. In 600 million years, total solar eclipses will be impossible because the Moon will appear too small to cover the Sun completely.

26. A full moon on Halloween occurs approximately every _____ years.

  1. 25
  2. 8
  3. 13
  4. 19
Correct answer: 19
Explanation: Full moons on Halloween occur roughly every 19 years due to the Metonic cycle. The last ones were 2001 and 2020, with the next in 2039. Regional visibility varies.

27. Beautiful! Beautiful! Magnificent desolation!' were the first words spoken on the moon by which astronaut?

  1. Yuri Gagarin
  2. Neil Armstrong
  3. Michael Collins
  4. Buzz Aldrin
Correct answer: Buzz Aldrin
Explanation: Buzz Aldrin was the second person to walk on the moon during the Apollo 11 mission and described the lunar landscape with this poetic remark.

28. Who was the first person to observe sunspots?

  1. Newton
  2. Kepler
  3. Copernicus
  4. Galileo
Correct answer: Galileo
Explanation: Galileo was the first to observe and document sunspots in the early 17th century, providing evidence that the sun is not a flawless sphere, as previously thought.

29. In 1962, John Glenn's space capsule splashed down near ____ Turk after orbiting Earth.

  1. South
  2. North
  3. Grand
  4. East
Correct answer: Grand
Explanation: Astronaut John Glenn's Friendship 7 capsule splashed down near Grand Turk on February 20, 1962, after becoming the first American to orbit Earth. A small museum commemorates this event.

Related Categories

🧠

General Knowledge

🌍

Geography

📚

Literature

📐

Math

🎬

Movies

🎵

Music

🔬

Science

💻

Technology

Questions you might ask

How are the questions verified for accuracy?

Our questions are community-driven and are reviewed by moderators for accuracy and quality. We strive to provide the best and most accurate questions for your quizzes.

Can I use these questions for commercial purposes?

Yes. The questions on QQO are mostly sent by our community, and we believe they should be for everyone to use. So, you can use our questions for personal and commercial purposes.

How can I submit my own quiz questions?

You can submit your own questions through our submission form. Once you sign up, you can track the status of your submissions and see them on the site once they are approved.

Reviewed by

Salim Dın

Salim Dın

Salim has experience in content marketing, growth marketing, product marketing, online forms, and building viral quizzes. Salim founded Quiz Questions Org (QQO, in short) in 2025. Ever curious, he loves researching different topics and areas to turn them into quizzes. Salim has a lifelong passion for cycling and traveling.