Solar System Trivia

Can you answer these questions about the Solar System in which we reside?
Quiz by Quizmaster
Last updated: February 5, 2022
You have not attempted this quiz yet.
First submittedFebruary 5, 2022
Times taken18,549
Average score55.0%
Enter answer here
 / 20 guessed
The quiz is paused. You have remaining.
You scored / = %
This beats or equals % of test takers also scored 100%
The average score is
Your high score is
Your fastest time is
Keep scrolling down for answers and more stats ...
Which planet is closest to the Sun?
What gas composes 96% of Venus's thick atmosphere, creating
a runaway greenhouse effect?
Carbon Dioxide
What "belt" appears between the orbits of Mars and Jupiter?
Asteroid Belt
What is the largest object in that belt, named for the Roman goddess of agriculture?
Name one of the four largest moons of Jupiter.
Ganymede | Callisto |
Europa | Io
What type of planet is Pluto?
Dwarf Planet
What "belt" appears beyond the orbit of Neptune and is home to the above?
Kuiper Belt
To the nearest whole number, what is the mass of the sun as a percentage
of the mass of the entire solar system?
In what galaxy is our Solar System located?
Milky Way
What is the term for a model of our Solar System which places
the sun at the center?
What term refers to the distance between the Earth and the Sun?
Astronomical Unit
What Martian volcano is nearly three times higher than Mount Everest?
Olympus Mons
What is the name of the giant storm that has been visible on the surface of Jupiter
since at least 1878, and probably much longer?
Great Red Spot
What comet appears in the inner solar system every 75–76 years?
Halley's Comet
What became, in 2012, the first human-built probe to exit the solar system?
Voyager 1
What is the nearest star to the sun?
Proxima Centauri
What gas composes 89% of the volume of Jupiter?
What shape mysteriously appears on the north pole of Saturn?
What comet slammed into Jupiter in 1994 with the force of 6 trillion tons of TNT?
What crystallized carbon substance do scientist think might rain from
the sky on Jupiter, Saturn, Uranus, and Neptune?
Level 72
Feb 6, 2022
Cool quiz!
Level 87
Feb 7, 2022
Ugh kuiper not kuyper. I tried everything but the correct spelling
Level 65
Feb 7, 2022
I tried Shumaker... (D'OH)
Level 49
Feb 16, 2022
Better than my attempt with Schumacher!
Level 58
Feb 7, 2022
I tried red dot, big red dot, great red dot... but not spot!
Level 74
Feb 7, 2022
Tried all shapes up to pentagon...
Level 73
Feb 13, 2022
Do you work under the DoD by any chance?
Level 83
Feb 16, 2022
I never heard of that one, either, but eventually got it guessing random shapes.
Level 73
Feb 8, 2022
I also thought it was Kuyper! So close.
Level 57
Feb 16, 2022
18/20, way better than I thought I'd do! :D
Level 69
Feb 16, 2022
Nitpick: Dwarf planets are not a type of planet, but in fact a wholly separate category.

From Wikipedia: "In 2006 the concept was adopted by the International Astronomical Union (IAU) as a category of sub-planetary objects, part of a three-way recategorization of bodies orbiting the Sun: planets, dwarf planets and small Solar System bodies. […] Since 2006 the IAU and perhaps the majority of astronomers have excluded them from the roster of planets."

Level 72
Feb 16, 2022
So disappointed the comet wasn't Eugene-Levy
Level 51
Feb 16, 2022
I tried both eugene and dan for Jupiter's comet...neither were right for some reason...
Level 91
Feb 16, 2022
At times I wish I could send Daniel crashing into Jupiter... #COYS
Level 83
Feb 16, 2022
Pretty easy. Lived in this solar system all my life.
Level 70
Feb 17, 2022
Too solar-centric.
Level 83
Feb 19, 2022
Don't you mean heliocentric?
Level 68
Feb 16, 2022
Hmmm...what's the scientific name for the Great Red Spot?
Level 58
Feb 16, 2022
Great Red Spot
Level 55
Feb 16, 2022
I remember Halley's comet from like 5th/6th grade. It was such a big deal at the time. But for all these years I thought it was Hailey's comet. Lol I guess I learned something today!
Level 46
Jun 12, 2023
I'm glad I wasn't the only one who thought that.
Level 62
Feb 16, 2022
Got 19 but couldn’t remember the _____-Levy one. Tried joke answers like Marv and Chandra. Obviously both incorrect.
Level 73
Feb 20, 2022
Too heliocentric.
Level 22
Feb 21, 2023
H2 should be a valid answer for Hydrogen :)

I mean, CO2 already is for Carbon Dyoxide