Thank you RJN:
As an amateur astronomer who is active in his local astronomy club, this online course is just what I needed. I really regret not studying astronomy when I was a college student many years ago. I would really welcome the opportunity to take your quizzes and exams just to see if I'm understanding the material being offered. However, If you can't do that because you may need the questions for current courses you are teaching, I understand. Also, the idea of using the Wikipedia entries in lieu of a text book is a stunning concept in education. By relying on the open editing framework of Wikipedia, the information will always be up to date and vetted by experts in the field which should filter out erroneous information. In some ways, I find this a revolutionary and economic approach, no such thing existed when I was a poor college trying to buy textbooks which may be out of date when you need them. Again, thanks for the course....I'm looking forward to completing it.