Blackholes
How the Universe Works – Are Black Holes Real & Mysteries Of Our Place In The Milky Way

No, a black hole is not really a hole at all. A black hole is an object just like any other, except that it is extremely dense. This gives it such a high gravitational field that nothing, not even light, can escape. … This may be why it is often misconstrued that black holes are ‘holes’ in space-time.
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