(3-0) Cr. 3. Alt. S., offered even-numbered years.

Prereq: ASTRO 405 or ASTRO 505 or permission of instructor
Overall structure of our Galaxy and the interstellar medium. Physical processes in the interstellar medium (e.g., heating and cooling mechanisms, turbulence). Observational techniques for studying the interstellar medium. Kinematics and chemical evolution of the Galaxy.