Stellar evolution

And this has been known for quite a while, known for at least years, that black holes should exist.

And the reason they should is that they are one of the possible endpoints of stellar evolution, the evolution of stars.

And so now, I want to summarize how stars evolve.

I should say, this is the subject of whole courses.

End quote.

Most of Stellar Evolution is a slideshow we get one frame of.

This one is a film.

A quick update on a story we left deliberately unfinished.