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Astronomy Quiz

Updated on September 11, 2014

Online Astronomy and Space Trivia

Test your knowledge in our online astronomy and space quiz which contains ten questions about the Solar System, the history of space exploration, and the stars and galaxies around us. See how you compare to others who took this test, and challenge your friends to see if they do any better.

Once you finish all the astronomy quiz questions, feel free to share your results and thoughts in the comments section.

Astronomy Quiz

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NGC 4414 spiral galaxy. Public domain image from NASA.
NGC 4414 spiral galaxy. Public domain image from NASA.

Excellent Book on Cosmology

A Brief History of Time
A Brief History of Time

Didn't do so well at the quiz? Maybe it's time to study a little! A Brief History of Time: From the Big Bang to Black Holes is a bestselling science book by the brilliant theoretical physicist Stephen Hawking. It explains how scientists are trying to answer questions like where our universe came from, how and why it began, and how it 's going to end. Among the topics covered are gravity, black holes, the Big Bang, the nature of time, and physicists' search for a "theory of everything". While it covers highly complicated subjects, Brief History of Time offers good, clear explanations and is very readable.


Comments - How well did you do at our online astronomy quiz?

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    • profile image

      travelerme 4 years ago

      great questions

    • Cynthia Haltom profile image

      Cynthia Haltom 4 years ago from Diamondhead

      Astronomy has always fascinated me.

    • profile image

      dellgirl 5 years ago

      This is a fun lens you have, I love it!

    • KateAdamsUSA profile image

      KateAdamsUSA 5 years ago

      nice quiz, check out my astrobiology squid quiz:

    • profile image

      anonymous 5 years ago

      i did very well and i didn't think i would score 10/10 100%

    • profile image

      anonymous 5 years ago

      i did very well and i didn't think i would score 10/10 100%

    • profile image

      anonymous 5 years ago

      I enjoyed the quiz and scored 100%, am happy with that :P

    • eightieschild profile image

      eightieschild 5 years ago

      Got 80%. :) Although, Q5 is somewhat open to interpretation.

    • melissiaoliver profile image

      melissiaoliver 5 years ago

      Not very well at all, my knowledge on the solar systems needs brushing up! Just a quick question: are you sure that Venus has the highest surface temperature? I would have thought it was Mercury, what with it being closer to the Sun.

    • profile image

      JamesDWilson 5 years ago

      9 out 10, not bad... caught out by the 'largest galaxy' question!

    • LiteraryMind profile image

      Ellen Gregory 5 years ago from Connecticut, USA

      Interesting and thought provoking questions. I had fun. (I wasn't the brightest star in the universe -- but I had fun).

    • Kara Hara profile image

      Kara Hara 5 years ago

      Great. Thanks for the interesting lens and quiz

    • FallenAngel 483 profile image

      FallenAngel 483 5 years ago

      This was so fun and I got 9 out of 10 so i'm proud :)

    • Sher Ritchie profile image

      Sher Ritchie 5 years ago

      50% - this is a great quiz! Thanks for sharing!

    • profile image

      anonymous 5 years ago

      i really enjoyed this quiz

    • profile image

      Ladyeaglefeather 5 years ago

      I really like this lens.

    • profile image

      Edutopia 6 years ago

      Good job on the lens, really enjoyed it. I got a 90% on the quiz, couldn't remember the primary component of the Martian atmosphere; went with methane. Think I was remembering data about how to rapid terraform Mars and got my chemicals mixed up, ah well.

    • profile image

      cmadden 6 years ago

      8/10 - one I just didn't know, and one a DUH! moment. Sigh.

    • Hypersapien2 profile image

      Hypersapien2 6 years ago from U.S.

      enjoyed this, thanks.

    • profile image

      anonymous 6 years ago

      I have this lens that is all about ideas of space and what could be after space, and it also includes some questions to some of the greatest mysteries of all time. I think the people who enjoy astronomy and such would enjoy reading this. the url is

      Leave feed back to help me improve my writing.

    • profile image

      anonymous 6 years ago

      6/10. not bad though.

    • profile image

      anonymous 6 years ago

      Thank you so much for providing this valuable information here. I am a newbie to astronomy field. As I am very much interested in astronomy & Stargazing field I have also bought a Telescope for that. Thanks again for this lense.

    • profile image

      anonymous 6 years ago

      9/10 pretty good!

    • robertsugar lm profile image

      robertsugar lm 6 years ago

      Not too bad 9/10 (I misunderstood one question), no wonder, this is my profession.

    • MamaWise LM profile image

      MamaWise LM 6 years ago

      Not too bad... 7/10

    • profile image

      Gift_Bird 6 years ago

      I never was very good at astronomy. Only 3/10. But it was fun!

    • adamfrench profile image

      adamfrench 6 years ago

      Good quiz, thumbs up

    • orange3 lm profile image

      orange3 lm 6 years ago

      Fun quiz. I didn't do that great though. Thank you

    • kwj profile image

      kwj 6 years ago

      9/10 :)

    • Addy Bell profile image

      Addy Bell 6 years ago

      The question about the planet with the highest *average* temperature was cleverly phrased. It almost got me. Still, I missed the cosmology questions and only got 7 out of 10.

    • profile image

      top-telescope-eyepieces 6 years ago

      Good quiz, I aced it. Brief History of Time is a good book. Cosmos and Pale Blue Dot by Dr. Carl Sagan are excellent as well (more general audience).

    • profile image

      anonymous 6 years ago

      9/10 and im 15.... wanna be an astronomer

    • profile image

      NYThroughTheLens 6 years ago

      Nice quiz!

    • Blackspaniel1 profile image

      Blackspaniel1 6 years ago

      Quite well. I am a physicish and teach astronomy.

    • RandomSpecifics profile image

      RandomSpecifics 6 years ago

      I need to go back to school - 1/10

    • profile image

      Angela_Rosas 6 years ago


    • ChrisDay LM profile image

      ChrisDay LM 7 years ago

      Only 80% - tricky but good, thanks

    • profile image

      diseasesymptoms 7 years ago

      great quiz.. but i did bad

    • profile image

      reasonablerobby 7 years ago

      Hooray I got 9 out 10 failing on where iron came from :(

    • sukkran trichy profile image

      sukkran trichy 7 years ago from Trichy/Tamil Nadu

      interesting quiz but i got 50%

    • ChemKnitsBlog2 profile image

      ChemKnitsBlog2 7 years ago

      I'm just sad that Pluto got kicked off of the planet list. My 2nd grade report is a lie!

    • John Dyhouse profile image

      John Dyhouse 7 years ago from UK

      enjoyed the quiz, thanks

    • profile image

      anonymous 7 years ago

      I'll go study and do better next time, are you sure those are the correct answers? lol Does being right and wrong equally put me in a black hole?

    • indigoj profile image

      Indigo Janson 7 years ago from UK

      What a smart quiz, I enjoyed the challenge. I knew more than I expected as I got 7 out of 10. You've motivated me to learn more about astronomy.

    • Swisstoons profile image

      Thomas F. Wuthrich 7 years ago from Michigan

      I'm ashamed to say that I got only 60%. It was an excellent quiz though. Thumbs up.