The surfaces of planets, moons, and other bodies are shaped and modified by a wide array of physical and chemical processes. Understanding these processes allows us to decipher the history of the Solar System. This course offers a quantitative examination of both exogenous processes - such as impact cratering and space weathering - and endogenous processes - such as tectonics, weathering, and volcanic, fluvial, eolian, and periglacial activity - as well as a brief introduction to the fundamentals of remote sensing in the context of planetary exploration. As we develop a basic mechanistic framework for these processes, we will apply our acquired knowledge through thematic discussions of the surfaces of Mercury, Venus, Earth, the Moon, Mars, asteroids, Io, Titan, Europa, Enceladus, Pluto, and comets. For upper-division undergraduates and graduate students. Taught in odd years.