Google Earth is a virtual mapping service that allows users to explore the globe through satellite imagery, aerial photography, and 3D terrain. It provides detailed views of various locations, enabling users to zoom in on cities, landmarks, and natural features. Users can also access additional layers of information, such as roads, borders, and places of interest. The platform is available on desktop and mobile devices, making it easy for anyone to discover and learn about different parts of the world from the comfort of their home.