Use for questions related to the creation/possibility of black holes in a certain situation, singularities, the contraction of an astronomical object due to its own gravity, and the re-collapse of our universe. Do not use for questions relating to normal gravitational attraction.

Gravitational collapse occurs at the end of a star's life, as it collapses into a white dwarf, neutron star, or (if it collapses within its Schwarzchild radius) a black hole. Gravitational collapse is also used in a theory of the universe called the Big Crunch theory, which is where scientists believe that if the universe's expansion does not exceed the space velocity, the universe will begin to shrink, ending up in either a black hole singularity, or another Big Bang (this specific ending of the theory leading to a cyclic universe).

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