When does a black hole cease to exist or become filled up?

Question

Gravitational pull of a black hole must have limits, but acts like a whirlpool. If the colllapse of the planet, pulls in more matter than the planet itself, what exponential of matter can it hold?

Answer 1

Black holes are not just gravity, it's not one dimensional either.

A quick overview of black holes, which some time seem like an insane concept, I think would be helpful. To be succinct, a black hole is a point, otherwise called a singularity, that warps the "geometry" of space-time so much that once matter crosses the event horizon (the point of no return) that no matter or energy (light) except Hawking radition escapes.

To get a black hole, you need a particularly large star to explode (go supernova) and then collapse back in on itself. When it collapses back in on itself making it into singularity (a point of massive gravity created from a lot of mass crammed into a small space). The singularity's mass and gravity are so great that it warps space-time into a funnel-like form leading into the singularity. Before you fall into the singularity, you'll encounter the event horizon which is where black hole physics (which are nothing like the physics that is normal to the rest of space) and normal physics meet. Once you cross the event horizon into black hole territory, it's no return for you.

Blackholes, according to Stephen Hawking, will eventually "dissolve" as they spew a form of energy called Hawking radition continuously.

The supermassive black hole at the center of our galaxy hasn't sucked down any matter for quite some time (there's now evidence that this may be changing however), so there is vacuum around it with nothing falling into the black hole. The black hole is emitting Hawking radiation continuously, however, and would eventually shrink and "dissolve," for lack of a better word, back into normal space.

Here is where we come to, I think, your point of question. Black holes suck down all matter and energy that crosses the event horizon and swirl it down into the singularity. Matter has mass and that mass adds more mass and thus more gravity to the singularity. Blackholes don't "fill up," they can't. They grow from the mass they feeds on.

It'll grow until it runs out of stuff to feed on, slowly it will release Hawking radiation and it is possible that they will dissolve back into regular space eventually if not given new matter to feel on.

Answer 2

I guess I have a different take on the question, assuming everything that exists has a beginning and end, everything that lives eventually dies... How does a black hole s life end? Does it become something else, as the star that went super-nova became a black hole?

Answer 3

Black holes never fill up. However in a google years or so, even black hole eventually evaporate. Look up Hawking's radiation.

Answer 4

Black holes don't cease to exist. They will continue to "fill up" since their increased mass generates increased gravitational pull. I suppose that eventually, there will be only one black hole containing all universal matter

Answer 5

reasearchers dont know much about black holes since every test we run on the gets sucked in from the gravity including energy waves and light. a black hole can swallow whole solar systems so im pretty sure it can hold alot

Answer 6

I suspect that balck holes are cyclic from suns to black holes to suns again.I also suspect that you would never see a sun turning in to a black hole if there are planets orbiting the sun.The planets would alter the system gravity making it impossible for a black hole to occur.You would have to study balck holes for planets.

Answer 7

You are trying to understand a one dimensional object in four dimensional space. A black hole is one thing, gravity.

Answer 8

I GUESS NEVR
READ STEPHEN HAWKINGS VIEWS ABOUT THIS.