Read  https://astrobites.org/2010/12/27/origin-of-the-chemical-elements-2/ 

a) Identify a concept or topic discussed in the article that you’d like to learn more about.  Investigate this topic in more depth by reading either relevant sections of the original article or other source materials.  Write ~1 page about your topic and what you learned.  Provide references for the information.  

b) Identify a question that the astrobite article raised in your mind.  This will be required for the discussion assignment this week.  State the question here.