White Dwarf, Neutron Star or Black Hole
After the outer layers of the star drift away during the planetary nebula phase, only the core remains which takes the star to the white dwarf phase. White dwarfs are made of highly compressed carbon and oxygen material. They are extremely dense that their mass is comparable to the sun's mass.
A neutron star is the incredible compact core that remains after a supernova event. A neutron star can weigh the same as up to two suns.
Black holes are formed when stars of large-mass come to the end of their lifetime in a supernova event. Everything that remains after a supernova event is crushed down forming an incredibly small, dense object. The gravity surrounding the object is so strong that nothing can get away from it. Black holes can grow by consuming material, stars and even other black holes around them.
A neutron star is the incredible compact core that remains after a supernova event. A neutron star can weigh the same as up to two suns.
Black holes are formed when stars of large-mass come to the end of their lifetime in a supernova event. Everything that remains after a supernova event is crushed down forming an incredibly small, dense object. The gravity surrounding the object is so strong that nothing can get away from it. Black holes can grow by consuming material, stars and even other black holes around them.