The same reason Earth is the third planet. It's the order of the planets from the Sun.
Mars is the 3rd planet and mars is the 4th planet from the sun
This is the planet Mars.
The Earth is the 3rd planet from the Sun while Mars is the 4th. There is no known planet in between the Earth and Mars.
Mars is the 4th planet from the sun.
No, Venus is the second. Mars is the 4th planet from the Sun.
Mars
Mars
Mars.
Mars, but i am not sure.
In the solar system, Mars is the 4th planet from the Sun, following right after the Earth.
Mars is the 4th planet from the Sun.
Mars is the 4th planet from the sun. Mars is the fourth closet planet to the Sun. It is our outer neighbor in the solar system. Our inside neighbor is Venus which is the 2nd closest planet to the Sun. The Earth is the third closest planet to the Sun.Of the known planets in the solar system, Mars is the fourth nearest to the sun.