Space & Astronomy Quiz - General Knowledge

Free practice quiz: Space & Astronomy (General Knowledge). 10 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

This General Knowledge practice quiz has 10 multiple-choice questions on Space & Astronomy, and 10 of them come with an explanation. Try the 5 sample questions below (tap an option to check yourself), then play the full quiz online. No sign-up needed.

Sample questions

1. Spot the outsider?

   1. Callisto
   2. Ganymede
   3. Titan
   Show answer

   Answer: C. Titan

   Titan orbits Saturn, while Ganymede and Callisto orbit Jupiter.

2. Spot the outsider?

   1. Phobos
   2. Deimos
   3. Ganymede
   Show answer

   Answer: C. Ganymede

   Ganymede orbits Jupiter, while Phobos and Deimos are Mars's only moons.

3. Spot the outsider?

   1. Perseverance
   2. Curiosity
   3. Cassini
   Show answer

   Answer: C. Cassini

   Cassini orbited Saturn, while Curiosity and Perseverance are Mars rovers.

4. Spot the outsider?

   1. Nebula
   2. Galaxy
   3. Planet
   Show answer

   Answer: C. Planet

   A nebula and galaxy are large cosmic structures, while a planet is much smaller.

5. Who's behind the telescope silhouette?

   1. Edwin Hubble
   2. Galileo Galilei
   3. Isaac Newton
   Show answer

   Answer: B. Galileo Galilei

   Galileo used his telescope to discover Jupiter's four largest moons in 1610.

More questions in this quiz

Answers and explanations are in the full quiz.

1. Spot the outsider?
2. Spot the outsider?
3. Spot the outsider?
4. Spot the outsider?
5. Spot the outsider?

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