Well, some of the lower atomic weight elements were made by typical stars in their stellar furnaces. I think most of us knew that. But what about the higher atomic weight elements, where were they made if a typical star doesn't manufacture them? The answer is a supernova. A supernova is when a large star's internal furnace dies down to a level that the eternal pressure is less than the gravitational pull and the star implodes inward which causes a horrific explosion and all that is left afterwards is a neutron star no bigger than New Jersey, but a teacup full of the stuff it is made of would be so dense and heavy that it would fall through the Earth to its center.
Below is a before and after picture of a supernova explosion. The picture on the left is the bright supernova and the picture on the right is after it died down.
I could go on and on about this subject, but I will not because I am sure that I would bore you all. Now I want you all to know that you are my bright and shining star, so go brighten up the day and I hope your day will be just fantastic.