What planet is called Red Planet because of its color?

The planet known as the Red Planet is Mars. Mars Mars is called the Red Planet because it appears reddish when observed from Earth, especially in the night sky. This distinctive color comes from iron oxide (rust) that is widespread on its surface and in its dust. Over billions of years, iron in the Martian soil has reacted with oxygen, forming rust-like compounds that give the planet its characteristic red-orange appearance. Mars is the fourth planet from the Sun and is smaller than Earth, with about half its diameter. It has a thin atmosphere mostly made of carbon dioxide, which is not thick enough to support liquid water on the surface under normal conditions today. However, scientists believe that in the distant past, Mars may have had rivers, lakes, and possibly conditions that could have supported microbial life. Because of its color and relatively close visibility from Earth, Mars has been known since ancient times and was named after the Roman god of war due to its blood-like red appearance in the sky.