Which planet is known as the Red Planet?

The designation of Mars as the Red Planet arises from its distinct reddish appearance, which is due to iron oxide, commonly known as rust, on its surface. This characteristic hue is prominent when viewed from Earth, contributing to its recognition in both scientific terminology and popular culture.

Mars is often associated with various mythologies, having been named after the Roman god of war, which further solidifies its identity beyond just physical traits. The planet also plays a significant role in discussions about the potential for past life forms and future exploration, particularly because of its relatively close proximity to Earth compared to other planets in the solar system. Thus, the strong association between Mars and the title "Red Planet" reflects both its visual identity in the night sky and its cultural significance throughout history.