Introduction to the physical universe.  Topics include: constellations,
gravity, radiation, the Sun, structure and evolution of stars, neutron stars
and black holes, the Milky Way galaxy, normal galaxies, active galaxies,
quasars, cosmology, and the search for extraterrestrial life. There is one
required text for this course.  This course fulfills the natural and
mathematical sciences requirements.  Credit is not given for both A105 and A110.