Regio (lunar regions)

The term "regio" (plural: regiones) refers to large, distinctive areas on the Moon's surface, identified through their unique features and appearances. These regions are often characterized by differences in terrain, composition, or geological history, such as maria (dark volcanic plains) or highlands (lighter, heavily cratered areas). Mapping regiones helps scientists study lunar geology, understand its volcanic activity, and trace its history. Essentially, regiones serve as major geographic units on the Moon, allowing us to organize and explore its diverse landscape systematically.