Re: [math-fun] inner core of earth

Allegedly the earth has an inner core inside its core.

I wonder how big you have to be for you get an inner-inner-inner core of neutronium. Suppose the whole earth were an iron ball or the sun? Is there a size that collapses to have neutron matter at the center without becoming neutron matter all the way through? My best guess is that some of it will become neutron matter and the rest will blow away under the energy of falling toward the neutron matter. Whit