Expanding Universe?

Question

Ok so here goes.

Lets go back to the start before the big bang an all. Space as they assume was just a black nothing, just empty black space then we have of course the big bang and the universe were created.

The universe began its course to expand and continues to do so at this very day.So one can assume as it expands it expands and takes up the empty space and continues this way for ever or maybe it will slow down, stop and collapse. Who knows?

So if the expanding universe is continuing to expand and consume the emtpy space, this is the blackness with nothing in as was before the big bang

My Question is

Imagine a planet was far far our just sitting there in this big empty black space and far far away the big bang bang that created our universe is expanding and at some point it will have to hit this black space where the lonely planet is

What would you seen if anything. Would it be light coming towards very past or something of that nature.

Answer 1

I have to take slight exception to your premise, but that exception has major consequences on the conclusion.



I don't think it is correct to think of the time before the big bang as being a big empty space. Nor can we think of what's beyond the universe that way. Brace yourself.



There was no "before." No black emptiness; no eternal absolute void. Just nothing. No space. No time. Scary. The same would hold true for anything you consider outside of the universe, (which would include before or after). There IS no "outside." I know, this is counter-intuitive, but when talking about the universe, you have to think about it in ways that apply to nothing else.



So that planet you were thinking about? Can't exist.

Answer 2

The very premise of your question is flawed.



Space is a physical property of the universe - it was created at the moment of the big bang. Before the BB, it simply did not exist.



It's easy to picture the singularity that went boom hanging in a big dark void waiting for something to set it off, but this is entirely wrong. There wasn't anywhere for it to be - there was no space.



You just have to accept that this is the case rather than try and picture it as this is so far out of human experience we just can't imagine it.



Now, as the universe continues to expand, it is not "consuming" empty space - outside the universe there is none to consume. Instead, it's creating it's own space as it goes.



Your lonely planet is not just sitting out there waiting for the effects of the big bang to catch up with it - it was created by the big bang. Everything that exists within the universe was.



Look, this will seem rude and I apologise, but you seem to have not the smallest weeniest clue about how the universe actually works - although you seem interested to know. Can I recommend you read Bill Bryson's A Brief History of Nearly Everything. Very simple, enjoyable and informative, and it explains all this stuff.

Answer 3

Sadly it's all a lot more complicated than that. The Big Bang didn't happen in black empty space. Before the BB there was no space and no time. Consequently there is no possibility of a lonely planet out there watching the BB rushing upon it.



Obviously no-one can imagine nothingness; we all just picture black empty space, hence your confusion. So here's a mental picture to help you with the idea: imagine instead a two-dimensional Universe, rather like a large flat sheet of plastic. Imagine stuff happening within that plastic sheet, a bit like pictures on a strip of film, but moving. That's a two-dimensional Universe. Now imagine it suddenly exploding into a three-dimensional Universe, much like our own. As you can see, there is no possibility of this explosion running into anything else as there simply wasn't anything else outside of the 'film strip' in the first place. Well, that's the idea. Now try it with no dimensions. So there was nothing. Not even any directions to go in or time passing. Just nothing.



Of course, that raises the question of why the BB happened, and whether in fact there was something there beforehand, maybe in different dimensions than our three, but you'll have to get your PhD in Astrophysics to get to the bottom of that.

Answer 4

The big bang is a theory...This is the best explanation scientists can get with a consensuses. the more likely scenario is that space and time are infinite, but humankind's mind cannot grasp that there was no beginning and therefore no end. what do you think you would see at the "edge" of the universe... a wall...a net keeping you from going further? no you would see more starrs and more universe because you could travel forever in any direction and not be any closer to the edge of the universe...It does not exist.

Answer 5

Your scenario isn't valid at all. You're assuming some empty, black region in space outside our universe. First, we have no way of knowing even *if* there is any 'thing' outside our universe. Secondly, space is being created -- or enlarged if you prefer looking at it that way -- as the universe expands.

Answer 6

there is extra vacuum created as area expands. the total quantity of count does not replace with the aid of fact the universe expands. The mass of the universe is definitely lowering slowly, with the aid of fact many of the subject is being "burned up" in stars, and turning out to be to be potential.

Answer 7

u know the singularity which created the universe did not appear in space,instead space appeared inside the singularity and hence there was no space and time before the bang....as the universe expands it is actually introducing space and time to the regions it expands into

Answer 8

^^ What Level7 said up there; in fact all predictions point to there being no empty space outside of the universe - there IS no outside. Other universes, possibly, but no "empty" or "inside vs outside."

Answer 9

Well just watch Eastenders tomorrow as Shauna has it off with Gerry but she is pregnant by his brothers mate whos wife cant have kids but she don't know as she thinks its her husbands eldests sons who she slept with on the same night