Mars planet: Mars is the fourth planet from the

Mars is the fourth planet from the Sun. It is also known as the " Red Planet ", for its orange-red appearance. [22][23] Mars is a desert-like rocky planet with a tenuous atmosphere that is primarily carbon dioxide (CO2). Mars is the fourth planet from the Sun, and the seventh largest. It’s the only planet we know of inhabited entirely by robots. Mars is the fourth planet in the solar system in order of distance from the Sun and the seventh in size and mass. It is a periodically conspicuous reddish object in the night sky. There are intriguing clues that billions of years ago Mars was even more Earth-like than today. Mars Facts Mars is the fourth planet from the Sun and last of the terrestrial planets . Like the rest of the planets in the solar system (except Earth), Mars is named after a mythological figure - the Roman god of war. In addition to its official name, Mars is sometimes called the Red Planet because of the brownish-red color of its surface. Mars is the second smallest planet in the solar system behind Mercury.