Beyond the Big Bang

[freeflyjay]

i was talking to a professor at college years ago and he said space just goes on forever and there could be loads of big bangs ....he would not say universe cos it only means one lol ...

well thats debateable as well, there are many theorys of multiple universes and dimentions, so there may be many big bangs in many diamentions or universes

[symesie04]

So Julian based on what you were saying on the early universe then is it possible the Great Atrractor is merely a relic from the early gravity dominated universe? That in fact what we see is a time when the galaxies were being pulled or attracted by some gravitational force but as the universe has continued to expand the Great Attractor perhaps no longer attracts? In fact is it possible that the Great Attractor is simply (if it could ever be simple) a pocket of dark matter in the early expanding Universe?

[JulianO]

It could be a relic dark matter clump, which for some reason didn't get any baryons in it (dark galaxies). It could be a measurement artifact, it could be just something odd come about by chance, or it could hint of new physics and new universes.

I think watch this space...

[symesie04]

Thanks Julian, ill be watching with eager interest for the next billion or so years

[JulianO]

Better scopes, better resolution, out of the atmosphere, I think we'll find an answer sooner than that!

[RelativelyAwesome]

Truth is, we'll never know what's beyond our own light horizon. The universe could theoretically be infinite. We'll never be able to know based on what we are able to see. Light travels at a finite speed. Space itself is able to expand faster than light.

Given the speed at light reaches us, we will only be able to see what comes our way at that speed. Thus, the light horizon is the boundary we will never see past.

That doesn't mean there isn't anything there, just that at that point, space is actually expanding faster than light, so anything in those areas beyond the horizon is forever obscured from us.

[RelativelyAwesome]

well thats debateable as well, there are many theorys of multiple universes and dimentions, so there may be many big bangs in many diamentions or universes

I believe this is one of the predictions that comes out of M-Theory, no?

[symesie04]

Truth is, we'll never know what's beyond our own light horizon. The universe could theoretically be infinite. We'll never be able to know based on what we are able to see. Light travels at a finite speed. Space itself is able to expand faster than light.

Given the speed at light reaches us, we will only be able to see what comes our way at that speed. Thus, the light horizon is the boundary we will never see past.

That doesn't mean there isn't anything there, just that at that point, space is actually expanding faster than light, so anything in those areas beyond the horizon is forever obscured from us.

Yes you would have to assume that will be the case. However if we ever master quantum entaglement then who knows perhaps we will be able to retrieve information from realms beyond our visible horizon. In fact perhaps even from realms outside of our dimension.