Documents The Structure of the Universe AST 112. Galaxy Groups and Clusters A few galaxies are all by...

Slide 1 The Structure of the Universe AST 112 Slide 2 Galaxy Groups and Clusters A few galaxies are all by themselves Most belong to groups or clusters Galaxy Groups: –…

Documents Dark Matter Masses of Galaxies Gravity and Light Black Holes What is Dark Matter?

Slide 1 Dark Matter Masses of Galaxies Gravity and Light Black Holes What is Dark Matter? Slide 2 Recap Midterm Friday 11/1: summary review sheet posted Canvas homework :…