Mars is the fourth sun to the Earth and it Is also the second-smallest planet from the Solar System, right to Mercury. Galileo was the first man ever to observe Mars with a telescope. In English, Mars is the name of the Roman God of War and Mars is also often refered as the Red Planet since it's really red. Mars is red because the iron dioxide prevalent on it's surface gives it a reddish appearance. The color is visible to the naked eye. As of now, Mars can't be habitable because of lack of water and due to the strong sun.
