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Astronomy & Space Quiz

Astronomy & Space · Timed

20 questions · 10 min timer · Instant feedback

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 is the most abundant gas in the universe?

    • A. Nitrogen
    • B. Hydrogen
    • C. Helium
    • D. Oxygen
  2. Which planet is closest to the Sun?

    • A. Earth
    • B. Mercury
    • C. Venus
    • D. Mars
  3. Which is the second-largest planet in our solar system?

    • A. Jupiter
    • B. Neptune
    • C. Saturn
    • D. Uranus
  4. What is the primary state of matter found in stars?

    • A. Plasma
    • B. Solid
    • C. Gas
    • D. Liquid
  5. What is a 'Light Year' a measure of?

    • A. Speed
    • B. Intensity
    • C. Distance
    • D. Time
  6. What is a 'Nebula'?

    • A. A small galaxy
    • B. A moon
    • C. A dead star
    • D. A cloud of gas/dust
  7. Which planet has rings?

    • A. Mars
    • B. Earth
    • C. Saturn
    • D. Venus
  8. What is the term for a planet outside our Solar System?

    • A. Protoplanet
    • B. Dwarf planet
    • C. Exoplanet
    • D. Asteroid
  9. What planet is known as the Red Planet?

    • A. Earth
    • B. Mars
    • C. Venus
    • D. Jupiter
  10. Which planet is known as the Morning Star?

    • A. Mars
    • B. Jupiter
    • C. Saturn
    • D. Venus
  11. What is at the center of the Milky Way?

    • A. The Sun
    • B. A black hole
    • C. A large star
    • D. A planet
  12. What is the largest moon in the Solar System?

    • A. Europa
    • B. Titan
    • C. Ganymede
    • D. Moon
  13. Which planet is the smallest?

    • A. Venus
    • B. Neptune
    • C. Mars
    • D. Mercury
  14. Which planet takes the longest to orbit the Sun?

    • A. Neptune
    • B. Jupiter
    • C. Uranus
    • D. Saturn
  15. What is the name of the North Star?

    • A. Vega
    • B. Polaris
    • C. Sirius
    • D. Rigel
  16. Which constellation contains the 'Big Dipper'?

    • A. Orion
    • B. Ursa Major
    • C. Leo
    • D. Cassiopeia
  17. What is the term for the Moon blocking the Sun?

    • A. Solstice
    • B. Equinox
    • C. Solar Eclipse
    • D. Lunar Eclipse
  18. Which planet has a day longer than its year?

    • A. Venus
    • B. Mars
    • C. Jupiter
    • D. Mercury
  19. Which planet has a moon named Triton?

    • A. Saturn
    • B. Jupiter
    • C. Uranus
    • D. Neptune
  20. Which planet is Earth?

    • A. 1st
    • B. 3rd
    • C. 2nd
    • D. 4th