C1420

C1420

ASTR C1420x Galaxies and Cosmology 3 pts. Prerequisites: Working knowledge of high school algebra. The content, structure, and possible evolution of galaxies. The '21-centimeter line': the song of interstellar hydrogen. Distribution mass, seen and unseen, in galaxies and clusters of galaxies. Distribution of clusters over the sky. Quasars and the nuclei of galaxies. The origin of the universe, and the present controversy over its eventual fate.