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How are black holes made?
Answer 1:

Black holes form when you have so much mass in one place that the forces other than gravity can't overpower the force of gravity itself. So, for example, a neutron star is held up against its own gravity by the strong nuclear force, that prevents protons and neutrons from being packed together. If the neutron star is too massive, then the strong nuclear force will not be strong enough, and it will become a black hole.


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