The Mars poster is from the Astronomy series, which depicts all eight planets in the solar system. They were made especially for us by the artist from Wrocław. This poster shows Mars, the fourth planet from the sun, named after the Roman god of war Mars. All because of the rusty-red color that observers from Earth noticed already in antiquity. They associated these kinds of colors with the image of war. Mars Poster is a great gift for any fan of astronomy.