Sweet man. I'm sure your prof would give you extra credit if you went on sloans site and wrote a report haha I took a bunch of astronomy classes when I was in school and loved it. I went for aerospace engineering and ended up doing a minor in physics because I got obsessed with it lol Outside of that, 6 of my required electives were astronomy. 4 with the same prof who was probably the best teacher I ever had. He worked at nasa for like 16 years I think, retired and started teaching. His level of passion showed every single class. He's a rare breed.

Whenever you guys discuss cosmic rays etc, if a report/project etc is asked for, if you want to blow your prof away, make an at home particle detector and take it to class for a demo. It's incredibly easy. Theres a setup called a cloud chamber. You'll be able to visibly see alpha particles etc. My prof loved it and the rest of the class was in awe.