Is space infinite?

Question

Or is it round?

Answer 1

space itself is limitless, but there is a limit to the observable universe. we can only see up to this limit. this limit is spherical, and we are at the center of this sphere. so imagine that there are other observers at the edge of the observable universe. they should be able to see a part that we cannot, and so on.

Answer 2

Theoretical physics is just what the name says ... Theory. Which more or less means something is an absolute until we find out different.

Because we can't reach then end of the universe(space) and we know that it is expanding we perceive it as infinite. However if the "big bang" theory is correct then space is finite. "x" amount of matter expanding would have boundaries.

What I wonder is how much "nothing" if there for the universe to expand into? Is that infinite or will the universe eventually have no more room in which to expand?

Answer 3

Space within our Universe is not infinite, it is finite as the Universe is still expanding at nearly the speed of light. Our Universe is expanding into an infinite vacuum however. Doesn't it make you wonder exactly how big this infinite space outside of our Universe is? I mean everything has to end somewhere. It my seem infinitely large to us but to the creator of the Universe who i think would be God he may look upon this infinite space as a mere small space in relation to his size.

Answer 4

Our universe may be finite but much bigger than the 29 billion light year diameter that we can detect. If space expanded faster in earlier times than it does now, and if inflation theory is correct, the universe is not only big, but "really, really big." That's because if we look at very distant galaxies we look back in time. Time zero is estimated at about 14.5 billion years ago. Those distant galaxies are receding from us at near light speed. To go any further means the recession rate is even faster than lightspeed (remember, lightspeed has a limit, but the actual expansion of space does not). Therefore, we can't detect the universe beyond a certain distance. But if space expanded really fast in the beginning, the universe is exponentially much larger than we can even guess. As far as it being curved goes, that depends on its rate of expansion. If it is expanding faster than we think, it is an "open" or infinite universe, in that it will continue to expand for infinity. If the expansion rate is slower, it is a "closed" universe, round, and destined to collapse upon itself when gravity finally wins out. Or the universe is "flat" -- it will keep on expanding but will forever slow down, never quite reaching zero.

Answer 5

Space is finite. It has a limited size which is expanding, new evidence shows its expanding at an even faster rate.

So space is not infinite but it also has no boundaries. Like the surface of the earth. You can't walk in one direction and come to the end of the earth, and it is only so big.

Just like the earth if you traveled through space in a straight line you would come back to where you started.

Ain't Science Fun

Answer 6

I don't really know if space is infinite so much as it has no beginning and no end.
Imagine a circle on a sheet of paper. The circle itself is one-dimensional, but it is drawn on a 2-dimensional plane (the paper). The circle has no beginning and no end.
Now imagine a sphere in space. The surface of the sphere is 2 dimensional, but the sphere exists in 3-dimensional space. Again, the surface of the sphere has no beginning and no end.
Space is the same way, except now you have 3-dimensional space that exists in a 4-dimensional "environment." And just as the circle or the surface of the sphere had no beginning and no end, space has no beginning and no end.
Well, at least that's my understanding.

Answer 7

Space is infinite as it is expanding all the time. Although if you had some kind of teleporter, you could teleport to the end of space, you won't be there for long as it will have expanded beyond there already. Nobody knows whats at the end of space.

Answer 8

With the big bang, God spoke the universe into existence from a point singularity. The universe was nonexistent not even finite. Then it could be said it became finite since it is expanding from nothing. Relative to us humans, the universe can be said to be infinite using metric terms but in the perspective to God who is the alpha and omega, the beginning and the end, it is the circle of time and space, God is outside of time and space。

Answer 9

Not infinite, but also not comprehendable for most people. Scientists are not sure what the shape is. Some guess a torus (donut). It won't matter, because the outer reaches are moving away from us faster than the speed of light.*

*Matter cannot move at the speed of light, but space can expand at a rate above the speed of light, so yes, it is possible.

Answer 10

Space is not infinite, for it is continually being created as the universe expands outward. Beyond this expanding perimeter of the known universe is what may very well be a limitless vacuum.

Answer 11

Yes, space is indeed infinite...just as God our Father is infinite. T
he Bible says that, "Behold, the heavens, and the heavens of heavens cannot contain Thee"...so there is your definite answer...that the heavens are as infinite as God is infinite...so "space" has no ending nor even yet a beginning, It is indeed infinite my friend.