Planetary geography, alternatively known as astrogeology or exogeology, is a planetary science discipline concerned with the topography of the celestial bodies, for example, the planets and their moons, space rocks, comets, and shooting stars. It is likewise firmly connected with Earth-based geography. This is a very exciting time for planetary science, with new information being returned by spacecraft from the Moon, Mars, Venus, and Saturn, with forthcoming missions to Jupiter, Pluto, several asteroids and a comet, and with planets presently being discovered orbiting other stars. There is also considerable scientific interest in the likelihood of life somewhere else in the universe. On this course learn more about this and build up your insight into the close planetary system and its astronomical context.