Which planet is known as the Red Planet?

Mars is known as the Red Planet primarily due to its reddish appearance, which is a result of iron oxide, commonly known as rust, on its surface. This characteristic color is quite distinct and easily observable, especially when Mars is visible in the night sky. The nickname "Red Planet" has become widely recognized in both scientific and popular literature. In contrast, Venus, while often referred to as Earth’s twin due to its similar size and composition, has a thick atmosphere that gives it a bright yellowish appearance. Jupiter and Saturn, on the other hand, are gas giants known for their bands of clouds and rings, which have nothing to do with the red hue associated with Mars.