The Big One
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So, how far from a “normal” supernova do you have to be to avoid burning up/burning out the local atmosphere of your own planet?
How many supernova’s are required to create each of the common elements? A “regular” and a regular nova burns (combines) H-H->He, He_> Li and higher as it implodes later in life, and a little bit higher weight .. But those cannot leave the star. They are trapped inside the star’s gravity field.
So, only a supernova cab low elements (isotopes) outside to another star. Can a supernova create several tiers of element-isotope building in its own collapse?
Or are we limited by stellar fusion to “one-nuclei+one-nuclei fusion mass gain per supernova?
