Matter up to iron is formed in the center of a star, the elements above iron are only generated when a star ends it's life and explodes into a nebula. Each nebula expands to collide with other nebula to start a new star and on it goes. Now, how many times has this happened, by using the amount of elements above iron in our solar system, can we take an educated guess? Are we third generation matter? Maybe 4th or 5th generation? I would like to know so everyone can know how many times we have been recycled.