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Taking things to the limit the ultimate fate of any simply expanding universe is to contain just one single black hole because it has swallowed all the other black holes stars planets and atoms.This however does not take into account the acceleration of the expansion of the universe that appears to be happening. This could result in there being isolated atoms or assemblies of atoms around for a long time.
To put the current rate of expansion of the universe in a galactic/stellar scale it is about 0.2 millimetres per second over a distance of one light year.
Its just that the visible universe is a very big place and we can see a very long way so the velocites get quite big and become quite significant with respect to the velocity of light.
hmm maybe once all other matter in the univers is engulfed by one black hole the black hole itself could devour itself, maybe resulting in an explosion of hurrendous preportions, which could result in the re-creation of the universe. this being a very vague theory..
What happens to all of the material swallowed by a black hole? Does the black hole continue to grow forever, or does it reach a critical mass and then alter its behaviour?Chris
Quote from: chris on 03/03/2008 16:42:41What happens to all of the material swallowed by a black hole? Does the black hole continue to grow forever, or does it reach a critical mass and then alter its behaviour?ChrisI thought I saw a Discovery Channel show regarding Black Hole and Steven Hawkings, where he suggested a possible "Black Hole Radiation", which according to what I understood if a black hole is not getting constant materials the expelled radiation would eventually deplete the Black Hole and space around it will go back to normal.
BTW, it seems the general fate of a black hole is to be speculated about endlessly by physicists.
Black hole will eventually eat more and more matter to increase it's mass and then split into two.