* White Dwarf: For stars like our sun, the core collapses until it is supported by electron degeneracy pressure. This creates a small, dense, and incredibly hot object called a white dwarf.
* Neutron Star: For stars that are significantly more massive than the sun, the core collapses even further, crushing electrons into protons to form neutrons. This results in an incredibly dense and compact object called a neutron star.
* Black Hole: For the most massive stars, the gravitational collapse is unstoppable, and the object continues to shrink indefinitely. This creates a singularity with infinite density, surrounded by an event horizon from which nothing, not even light, can escape. This is a black hole.
So, the fate of a star after it runs out of fuel depends heavily on its initial mass.
