Mars

Mars also known as Sol IV is the fourth planet from the Sun in the Sol system. Mars is the home of the Ice Warriors, and was colonized by humans in the late 21st century. It is named after Mars, the god of war in Roman mythology (the counterpart to Ares in Greek mythology), because of its red color as viewed in the night sky. This feature also earned it the name "The Red Planet." Mars has two moons (Phobos and Deimos) which are both small and oddly-shaped, possibly being captured asteroids. The prefix areo- refers to Mars.

Stories set on Mars

 * Pyramids of Mars
 * GodEngine
 * The Dying Days

( The Ice Warriors, The Seeds of Death, The Ambassadors of Death, Genesis of the Daleks, Image of the Fendahl, The Sun Makers, Legacy and The Christmas Invasion refer to Mars.)