Space Trivia Challenge
Test your cosmic knowledge — 30+ questions await
Test your space knowledge with questions spanning the history of spaceflight, planetary science, rocketry, and the business of the new space economy. Questions are drawn from real mission data and space agency archives. Answer multiple-choice questions across five difficulty levels. Each answer includes a detailed explanation with sources. Earn knowledge badges and track your score across categories.
💡 The Apollo Guidance Computer that landed humans on the Moon had 4 KB of RAM — less processing power than a 1970s pocket calculator.
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Space Trivia Challenge
Test your knowledge of the cosmos — from planet science and rocket history to astronaut firsts and exoplanet discoveries.
Frequently asked questions
How many questions are in the Space Trivia Challenge?
The library currently holds more than 30 questions covering planetary science, rocket history, astronaut firsts, the new space economy and exoplanets. You can play a Quick 10 round, a Full 20 round or take the entire question set — every quiz randomises the order so no two playthroughs are identical.
Are the answers verified?
Yes — every answer cites a source from NASA, ESA, JPL, the Smithsonian or peer-reviewed astronomy literature. After each question you see a short explanation with the source so you can read more. Questions are reviewed annually for accuracy and updated when missions complete.
What is the most-missed space trivia question?
Players most frequently miss questions about how slowly the Apollo Guidance Computer ran (it had only 4 KB of RAM), how many people have walked on the Moon (12), and which planet has the longest day (Venus, at 243 Earth days). Easy questions about the order of planets remain the most consistently answered.
Can I track my score across sessions?
Yes — your high score is saved in your browser via local storage, and you earn knowledge badges for category mastery (Planets, Rockets, Astronauts, Exoplanets, History). Clearing your browser data resets the badges and high score.