An examination of the solar system and its constituents, from a cosmological as well as a local viewpoint. We will examine astronomical and geological aspects of the planets, their moons, minor planets, and comets, as we understand them today, and as they have been considered historically. Special attention will be given to results from recent spacecraft encounters. We will also discuss planets discovered in recent years in solar systems other than our own. Observing to be arranged. Tutorial sessions to be arranged. Evaluation will be based on tutorial presentations and a final exam. Prerequisites: Astronomy 111 (or Astronomy 101 and either 102 or 104 with permission) and Physics 142, or permission of the instructor.