Martian geography is the study of the physical features, landscapes, and environments of the planet Mars. Researchers in this field focus on mapping and analyzing the surface features of Mars, including mountains, valleys, canyons, and impact craters. They also study the planet's climate, weather patterns, and atmospheric conditions. Martian geography also involves investigating the history of water on Mars, including the presence of ancient lakes, rivers, and glaciers. This research area is essential for understanding the past and present conditions on Mars and for planning future exploration missions to the planet.