The planet appears red because its sand is iron oxide or rust. These are the basic features. For years, scientists have wondered if there's life in the universe. There is no proof that there is life on Mars. The question may never be answered.
People think different things.
Last August, NASA found a Martian rock in Antarctica. They think it has microscopic minerals. Martian germs may have made the minerals. Today Mars remains a mystery to scientists. To travel to Mars, the world needs to cooperate.