Mars

Mars is the fourth planet from our sun. It is mentioned in the episode D.W. Aims High. Mars is called "The Red Planet" because the rocks on Mars have iron in them. When iron rusts, it turns red. It has two moons called Deimos and Phobos. Mars is the setting of the movie Attack of the Sleepless Martian Dinosaurs.

In the opening to "Brain Sees Stars," Brain, Buster, and Arthur take a rocket to Mars, but are sent off course.