Trivia Extra > Planet Quizzes and Trivia

Welcome to our Planet Quiz Questions Page

Quiz I

  1. What name is given to a planet outside the solar system that orbits a star?

  2. The Great Red Spot is a huge storm that has raged on which planet for at least 350 years?
  3. Which planet is home to the tallest mountain in our Solar System, Olympus Mons?
  4. Which two planets in our Solar System are gas giants?
  5. Which planet in the Solar System is closest in size to Earth?
  6. Which is the only planet that rotates clockwise?
  7. How many planet earths could you fit inside the volume of Saturn's outer ring: (a) a million, (b) 100 million, or (c) a billion?
  8. Which planet is nearest the earth: Mars or Venus?
  9. Name the only dwarf planet within the orbit of Neptune?
  10. True or False. Saturn can be seen with the naked eye?
  11. Which planet's moons include Oberon, Titania and Miranda?
  12. Which planet has the largest dust storms in the solar system?


  1. Exoplanet (or extrasolar planet)

  2. Jupiter
  3. Mars
  4. Jupiter and Saturn
  5. Venus
  6. Venus
  7. A billion
  8. Venus
  9. Ceres
  10. True
  11. Uranus
  12. Mars

Quiz II

  1. Which planet is known as the horned planet?
  2. In 1989, NASA's Voyager 2 revealed the planet Neptune to be what colour?
  3. Sir William Herschel discovered Uranus in 1781 whilst residing in his house in which English city - it's now home to the Herschel Museum of Astronomy?
  4. How many moons in total do the four terrestrial planets have?
  5. What's the name of the NASA space observatory launched in 2009 to discover Earth-size planets orbiting other stars?
  6. Name the largest dwarf planet?
  7. Which two planets in our solar system are ice giants?
  8. Can you name the four smallest planets in the Solar System from smallest to largest?
  9. Name the largest of the five known natural satellites of the dwarf planet Pluto?
  10. Which dwarf planet slightly larger than Pluto was discovered in January 2005?
  11. Can you name the two moons of Mars?
  12. Europa, Ganymede, and Callisto are moons of which planet?


  1. Venus

  2. (Bright azure) blue
  3. Bath
  4. Three (Mercury (0), Venus (0), Earth (1), and Mars (2))
  5. Kepler Space Telescope
  6. Pluto
  7. Uranus and Neptune
  8. Mercury (smallest), Mars, Venus, and Earth
  9. Charon
  10. Eris (some reports informally referred to it as the tenth planet)
  11. Phobos and Deimos
  12. Jupiter

See Also

> Astronomy Quiz
> Solar System Quiz

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