Which planet is known as the "Red Planet"?

Mars is known as the "Red Planet" due to its distinctive reddish appearance, which is caused by iron oxide, commonly known as rust, on its surface. This iron oxide reflects sunlight in a way that gives Mars a reddish hue when viewed from Earth. The nickname helps to distinguish Mars from other planets in our solar system, which have different atmospheric compositions and appearances. Mars has been a subject of interest for scientists and astronomers for centuries, often being associated with the possibility of past water, potential for future exploration, and its role in the broader understanding of planetary science.