MARS the fourth planet of our solar system, named over Roman God of war. Also referred as Red Planet for its thin reddish atmosphere. Like Earth, Mars has seasons, polar ice caps, volcanoes, canyons, and weather. Mars is home of the tallest mountain in the solar system, Olympus Mons, a shield volcano, is 21km high and 600km in diameter. Mars has two moons Phobos and Deimos.
