
Before we learn about when and how blackholes form, lets look into the process keeping stars balanced and what separates one stellar corpse from another.
Further Reading/Consumption:
Black Holes & Time Warps: Einstein's Outrageous Legacy - Kip Thorne
The Life And Death Of Stars -
A Comparison of the Binding Energies Due to the
Formation of the Three Types of Nucleon Spin Pairs -