What will happen when the universe stops expanding?
Answer:
It will start to contract until all matter collides, then that is the start of another 'big bang' and off it goes again. Then new planets and suns will be born all over again! This could have happened many times in the remote past! Just think of all the chances that life forms such as ourselves could have existed in previous past universes! This of course, is only my hypothesis, I could be wrong! But logic tells me that the uniform universal gravity field, can only get weaker the further matter pulls apart! eventually it must contract to it's former mass at the centre. The only problem I have with this is where does the gravitational mass come from, that is pulling it all back? Anti-matter? Have a good day.
Two answers--take your pick.
1. It will never stop expanding
2. When it reaches a certain point it will stop expanding and begin contracting.
It's only a few billion years until it happens, so why not wait and see for yourself?
According to science theory it wont. It will just go on expanding. Eventually, in billions of years from now, the night sky will be complete darkness. But before that the Andromeda Galaxy will crash into our Galaxy, sending us both into a swirling mass of exploding stars and dust. Watch out for the fireworks!.
It will contract back and be compressed and start out another big bang,,,, at least from hinduism beleives ,, my beleive is same, because it definately have something that pulls is back, like black hole
Global cooling.
If there is not enough matter to generate enough gravity, expansion will continue, entropy will follow as a result of thermodynamic laws, and matter will freeze.
I'm surprised Al Gore isn't set up to sell offset credits on this one, too.
It will start to implode after a little while, that is in universal time, may be a million or so years so don't worry to much about it,
I think it will collapse on its self with all planets, stars, asteroids etc. being drawn in to the centre where they will all collide, causing another big bang and the whole thing starts again!
Three possibilities.
It never stops expanding. It stops and starts to contract. The expansion keeps slowing down but never quite stops.
The scientists have a number called Omega. If Omega is less than one, the first happens. Greater than one, the second. Exactly one the third.
Omega is tough to calculate. You need things like the mass of the Universe. It appears to be small, but not too small, and maybe is one. That's interesting. If it started out just a little over or under one, most theories think it would now be very large or very small.
There is one version of the Big Bang theory in which Omega was forced to be exactly one.
But no one knows for sure.
it will start to contract and eventually turn to a black hole
tuesdays coming did you bring ur coat
Read Stephen Hawking's "A Brief History of Time". It deals with this question in some depth.
Bob is correct. We don't know if the universe will ever stop expanding. We don't even know why it's currently accelerating in its expansion. It's possible that the universe will continue to accelerate in its expansion, that it will stop accelerating but continue to expand, or that it will slow down and eventually start contracting and collapse in on itself.
We simply don't know enough about the universe to answer this question yet.
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