Module 3 Discussion Forum

Read: Textbook Ch. 12: 12.2 - 12.5

The most important topics in this chapter are: 

· Structure of our galaxy

· Spiral arms and Star Formation

· The nucleus of our galaxy

· Origin of our galaxy

Read: Textbook Ch. 13: 13.1 - 13.4

The most important topics in this chapter are: 

· The family of galaxies

· Measuring the properties of galaxies

· Evolution of galaxies

· Active galactic nuclei and Quasars

· You have to post at least ONE [1] post per module DUE BY: 07/11

What was the most interesting idea or discovery that you found in the chapters covered in this module? Explain in a paragraph [5 - 10 sentences].