Giving you the benefit of the doubt, you probably mean the farthest planet in the game. But as others have noted the red comes from the high iron oxide levels. Clearly the traveler's terra forming power is not understandable to our frame of thinking. Here's an easy way to remember the order of the planets - My Very Easy Method Just Set Up Nine Planets. First letters align with Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto. Granted you have to remember that Pluto has been unjustly demoted.