A "Martian" refers to a hypothetical or fictional inhabitant of the planet Mars. In popular culture, Martians are often depicted as intelligent beings with unique physical characteristics, such as green skin and large eyes. They are commonly featured in science fiction literature, movies, and television shows. In scientific terms, the study of Mars has led to the exploration of its surface and atmosphere, revealing evidence of past water and potential for microbial life. While no definitive proof of Martians exists, ongoing missions by space agencies like NASA aim to uncover more about the planet's history and its capacity to support life.