2007-02-21 07:01:41 · 12 answers · asked by goring 6 in Science & Mathematics ➔ Astronomy & Space
A black hole is an object from which nothing can escape, including light.
Our universe is, by definition, everything there is.
Therefore, a photon that is emitted in the universe will always stay in the universe. If it tries to go to "another place", then that other place exists, is connected to our universe (by the photon) -- or, if you prefer, is within the light-cone of some part of our universe, therefore it is still in the universe.
Since nothing can escape our universe, not even light, then our universe already is a black hole.
2007-02-21 07:59:32 · answer #1 · answered by Raymond 7 · 1⤊ 0⤋
It's a common misconception that black holes "suck" everything into them no matter how far away those things are, given enough time.
Black holes in reality are like any other object with mass that has gravity -- like our sun, our planet, etc. Anything that has any linear velocity goes into orbit around a gravity source, it doesn't get sucked in. Our planet is orbiting our sun, has been for some 4.5 billion years, and will continue to do so, never "falling into the sun" unless some other force acts on our planet. Same for objects and black holes -- it's just that black holes are a very strong gravity source, and so it takes a lot of linear velocity to stay in orbit if the object is close to the black hole. But anything at a reasonable distance (like 99% of our galaxy) will just continue to orbit the black hole without ever falling in.
So the answer to your question: No. Not unless some external forces pushed everything in every galaxy towards the black holes at the center of galaxies, and then pushed every galaxy together.
2007-02-21 15:12:36 · answer #2 · answered by Anonymous · 0⤊ 0⤋
No since the universe is expanding and galaxy clusters are all moving away from each other. There is not enough matter in the universe to cause it to fall back on itself to make one black hole. The universe may end with a bunch of black holes moving away from each other until they evaporate through Hawkings radiation but not one single black hole.
2007-02-21 15:10:26 · answer #3 · answered by Twizard113 5 · 0⤊ 0⤋
There are theories that predict this, but there are also theories that will contradict this, we do have the formulas to find out this possibility, but we do not have enough data on how much Matter there is in the universe, so to answer you question is we don't know.
However should this be a possibility, I think you should not worry about it since if it where to ha pend, this would be in hundreds thousands millions of years. and the planet earth would have long ago had being burnt up by our own exploding sun. and if humans don't migrate to another galaxy we are due for extincion then.
2007-02-21 15:38:51 · answer #4 · answered by Delll R 1 · 0⤊ 0⤋
In theory the universe will stop expanding and go the other direction because of gravity i think it will eventually create a big black hole but if that happens there will be another big bang and it will start all over again.
2007-02-21 15:07:28 · answer #5 · answered by poom 2 · 1⤊ 1⤋
It could but the universe will not exist long enough for it to happen. Same goes for a black hole itself. It's not true nothing can escape its gravity, they are giving off certain radiation forms - in other words they are melting. But the universe will not last long enough for it to happen.
2007-02-21 15:08:59 · answer #6 · answered by Anonymous · 0⤊ 0⤋
Seems unlikely since you already got the answer before that it's expanding at an ever increasing rate.
2007-02-21 15:04:41 · answer #7 · answered by Gene 7 · 0⤊ 0⤋
The answer to your question is no. The death of a star always gives life to new stars, check out the video I made showing this concept.
2007-02-21 15:08:30 · answer #8 · answered by Scourge 2 · 0⤊ 0⤋
yes once the sun blows up then the whole universe Will get to hot and evaporate
2007-02-21 16:25:38 · answer #9 · answered by Anonymous · 0⤊ 1⤋
Who cares. No im just kidding the unvirse will never stop expanding.
2007-02-21 15:09:51 · answer #10 · answered by Will S 2 · 0⤊ 0⤋