Look at this periodic table and describe why it's designed the way it is. The next person can describe why the H, C and O are so similar in size. Someone else can describe what stars have to do with what we see. Someone else can describe the connection between stellar events and the small abundance of heavy elements. Click the image if you need a better view.
This blog is for you...
Feel free to share some curious train of thought you have, as well as share your thoughts on others.