Mars is the fourth planet from the Sun in our solar system, often called the "Red Planet" due to its reddish appearance.
In Roman mythology, Mars was the god of war, equivalent to the Greek god Ares.
The term "Mars" also refers to:
1. A popular chocolate bar produced by Mars, Incorporated
2. The Roman name for the month of March (Martius)
3. A surname of English origin
4. Slang for a man who is aggressive or warlike