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Astronomy & Space Quiz

Astronomy & Space · Chemistry Quiz

20 questions · Unlimited attempts · Free online practice

The universe is vast, mysterious, and full of incredible discoveries waiting to be explored. From distant galaxies and brilliant stars to planets, black holes, and space missions,...

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All 20 questions in this Astronomy & Space quiz
  1. What are the 'icy' objects that orbit the sun and have tails?

    • A. Meteors
    • B. Comets
    • C. Asteroids
    • D. Nebulae
  2. What is a 'Light Year' a measure of?

    • A. Speed
    • B. Intensity
    • C. Distance
    • D. Time
  3. What is the name of the galaxy that contains our Solar System?

    • A. Milky Way
    • B. Andromeda
    • C. Sombrero
    • D. Messier 81
  4. What is the name of Earth's natural satellite?

    • A. Titan
    • B. Europa
    • C. The Moon
    • D. Phobos
  5. What is the name of the first human in space?

    • A. Neil Armstrong
    • B. Buzz Aldrin
    • C. Yuri Gagarin
    • D. John Glenn
  6. Which planet has a day longer than its year?

    • A. Venus
    • B. Mars
    • C. Jupiter
    • D. Mercury
  7. How many planets are in our Solar System?

    • A. 10
    • B. 9
    • C. 7
    • D. 8
  8. What is the largest moon in the Solar System?

    • A. Europa
    • B. Titan
    • C. Ganymede
    • D. Moon
  9. Which is the largest planet in our Solar System?

    • A. Saturn
    • B. Neptune
    • C. Earth
    • D. Jupiter
  10. What is the Sun?

    • A. An asteroid
    • B. A star
    • C. A planet
    • D. A moon
  11. Who was the first woman in space?

    • A. Sally Ride
    • B. Valentina Tereshkova
    • C. Mae Jemison
    • D. Peggy Whitson
  12. Which planet has the shortest day?

    • A. Mercury
    • B. Jupiter
    • C. Mars
    • D. Earth
  13. A 'Supernova' is the explosion of what?

    • A. A galaxy
    • B. A planet
    • C. A black hole
    • D. A star
  14. What is the age of the universe approximately?

    • A. 13.8 billion
    • B. 1 trillion
    • C. 100 billion
    • D. 4.6 billion
  15. Which is the second largest planet?

    • A. Jupiter
    • B. Saturn
    • C. Neptune
    • D. Uranus
  16. Which is the main gas in the Sun?

    • A. Oxygen
    • B. Nitrogen
    • C. Hydrogen
    • D. Carbon
  17. Which planet is often called Earth's twin?

    • A. Mars
    • B. Jupiter
    • C. Neptune
    • D. Venus
  18. What is the hottest planet in the Solar System?

    • A. Venus
    • B. Mars
    • C. Mercury
    • D. Jupiter
  19. What is the name of the telescope launched in 1990?

    • A. Hubble
    • B. Spitzer
    • C. Kepler
    • D. James Webb
  20. What is the study of the universe called?

    • A. Geology
    • B. Biology
    • C. Astrology
    • D. Astronomy