What is the fourth planet from the Sun known for its reddish appearance?

The fourth planet from the Sun is known for its reddish appearance due to iron oxide, commonly referred to as rust, which coats its surface. This distinctive reddish hue has earned Mars the nickname "the Red Planet." The planet's surface features, including its deserts, canyons, and polar ice caps, are also part of what makes it visually unique in the night sky. In addition to its color, Mars has been a focal point of exploration and study, particularly regarding potential past water presence and the possibility of life. The other planets listed have their unique characteristics but do not exhibit the prominent reddish appearance associated with Mars.