Quote:
Originally Posted by gregbradley
I read somewhere the sun may have a metal core. Is that right? I thought metals were high up on the table of elements and would not sustain fusion easily.
|
Greg, astrophysics considers everything above Helium to be a metal. All elements up to but not including Iron release energy in fusion. The Sun is not big enough to fuse anything above about Oxygen,and even that won't happen in any significant amount for a few billion years.