Mars geology is the study of the geological features and processes that have shaped the surface of Mars, the fourth planet from the Sun. This research area examines the planet's topography, mineral composition, and geological history to better understand its past and present geological activity. Scientists investigate Mars geology through remote sensing methods, such as orbiting satellites and rovers on the planet's surface, as well as analyzing meteorites that have originated from Mars. By studying Mars geology, researchers aim to learn more about the planet's history, potential for past habitability, and potential for supporting life in the future.