What makes Earth different from all the other planets? Did Mars ever have running water? What is Pluto? Will asteroids or comets collide with the Earth? What is a solar eclipse like? Astronomy 102, a non-major, general introduction to the part of contemporary astronomy that comprises the study of the solar system, will provide answers to these questions and more. We will cover the historical development of humanity's understanding of the solar system, examining contributions by Aristotle, Ptolemy, Copernicus, Galileo, Newton, and others. The course gives special attention to exciting discoveries of the past few years by space probes and by the Hubble Space Telescope. This course is independent of, and on the same level as Astronomy 101 and 104. Observing sessions include use of the 24, and other telescopes to observe stars, nebulae, planets, and galaxies, as well as the Sun. In addition, students will have the opportunity to learn the constellations and to find their way around the sky. In labs, students will explore concepts discussed in class. Format: lecture, three hours per week; observing sessions; and 4 labs per semester. Evaluation will be based on two hour tests, a final exam, an observing portfolio, and laboratory reports. No prerequisites. No enrollment limit (expected: 30). Non-major course.

Hour: PASACHOFF