click green flag to generate star system mercury is a planet with no atmosphere Venus would be a planet with a very thick atmosphere and hot temperatures Terra is a planet mostly made of rock and has a significant portion of water on it's surface, life terra is the same but with life and high oxygen in the atm mars is a planet with little atmosphere and no liquids ceres is a planet with large impact craters and mostly made of ice jupiter is a gas giant with a high amount of hydrogen and helium neptune is a planet with a high amount of ammonia, ices ice world is a planet made with ice and ammonia ices. Titans are cold planets mainly composed of rocky material, water ice and organic compounds and have a liqiud that is not water on the surface. callisto is a rocky planet with large ray mark craters pluto is a planet with large amount of ammonia ices on the surface, little to no ATM, and no liqiuds. haumea is the same as a pluto but with a high rotation speed. asteriod belt is a belt of rocks and boulders kuiper belt is belt of rock and boulers but with ices on them