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Nothing. Nothing holds up stars either: they float in space affected only by the gravity of other stellar objects.
As for what maintains the event horizon, it is a function of the gravity of the black hole's mass -- this determines the distance of the event horizon from the center of mass (a singularity). The more mass a black hole has, the larger the diameter of the event horizon and the larger the volume enclosed within it.
What else can I help you with?
What happens if a black hole is sucked into a black hole?
Its called a Super Black-hole and scientists believe it is what holds all galaxies together.
When you are sucked into a black hole where are you going and where do you end up?
When you are sucked into a black hole you'll get destroyed. The matter of your body will remain in the black hole.
How do you end up in a black hole?
you have to go to space and find one and get sucked into the black hole
Is dark matter like a black hole?
well, they both invisible and they got gravity. However Black Holes sucks everything into it and dark matter go through things and it holds up the universe together.
When scientists sent up rubbish into a black hole did it close it?
No rubbish has been sent into a black hole.
Does black hole cover whole world?
no it only takes up the space of where the black hole was located
Do black hole suck the sun?
In theory, yes, a black hole could suck up the sun.
Can the moon be sucked up by the black hole?
Yes, everything can be sucked in to a black hole, even light
Is it possible for a black hole to suck up a white hole?
Since whit holes only exist mathematically, a black hole could not pull in a white hole.
Can a black hole suck up Jupiter?
A black hole could potentially consume Jupiter if it entered the black hole's event horizon, the point of no return. However, the likelihood of Jupiter encountering a black hole and being sucked up is extremely low due to the vast distances between objects in space.
Can a black hole get sucked up by another black hole?
That's not exactly what happens. What really happens is that they just absorb each other and become a bigger black hole.
How do you blow up a black hole?
you can't.
