Astronomy 321: Cosmology meets Tuesdays and Thursdays, 1:30 -- 2:50 pm, in AAC 107. Note: No class on Feb. 1. We will discuss a possible make-up class when we meet. Here is the syllabus. Here is where there will be some updated information on class, exam, and homework schedules. Here is where postscript files for Problem Sets will eventually reside.