Sit back and relax. The Sun would become a black hole only if its diameter of 13,92,000 kilometers were somehow magically compressed to just under 6 kilometers. But supposing such a miracle does happen, the compression would not stop there. Further collapse would reduce it to an infinitesimally small size.
Would intense gravitational pull wrench the Earth from its orbit, swallow it up, and annihilate all its matter? Would there be no escape from the immense gravitational force of a black hole? Actually, nothing at all would happen to the Earth’s orbit. It would just become an orbit around a black hole rather than around an ordinary yellow star. The Earth would be well out of the black hole’s gravity reach.
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