Solar System
Solar System
Test your intergalactic knowledge
Test your intergalactic knowledge

Which planet contains Olympus Mons, the largest volcano of the solar system?
What planet has sulfuric acid rain?
How old is our solar system?
How many planets have moons?
What planet is the hottest?
Mercury doesn't spin on its axis.
What is the origin of Saturn's name?
Besides Jupiter, which other planet has a dark spot on it?
What planet is the moon "Titan" located on?
What is the heaviest terrestrial planet?
What planet could float on water?
Venus is composed of only carbon dioxide.
What planet is shrinking?
How many Earth days equal one year in Jupiter?
Between what 2 planets does the Asteroid Belt lay in?
Who is Earth's twin sister?
Jupiter is _ times heavier than all the planets combined.
What was Mercury known as before its official name was given?
Uranus is tilted how many degrees?
What gives Uranus and Neptune its blue color?