2007-03-19 00:17:42 · 8 answers · asked by darren p 2 in Science & Mathematics ➔ Astronomy & Space
but if its still growing as we speak whats it growing into?
2007-03-19 02:34:19 · update #1
It's believed to be curved in on itself, like the earth, except that the earth has a curved 2-D surface, in 3-D space, whereas the universe has a curved 3-D surface in 4-D space-time. As such, it doesn't end, it curves round and in principle should take you back to where you started if you travelled far enough. If you can visualise a 4-D hypersphere, then you're a better man than me, but if you imagine the universe as a room with a door on either side, stepping out through one door would just bring you back through the other.
The universe is indeed expanding. One of the other comments questioned what it was expanding into. The answer is: Time. Time is a dimension of space, just like the other three.
2007-03-19 00:29:54 · answer #1 · answered by Ian I 4 · 9⤊ 1⤋
Space is a finite entity that will eventually come to an end.
When space began producing matter it was extremely Dense.
As it evolved the density decreased.
In the extreme conditions at the center of galaxies neutron star activity annihilates large sections of space.
Space can have no gaps like torn space or black holes so it fills in.
Actually the filling in would create a situation that could lead to Red shifting of residual light in space that may be [erroneously] interpreted as an expanding universe.
2007-03-19 10:09:08 · answer #2 · answered by Billy Butthead 7 · 1⤊ 1⤋
Space-time is a property of the Universe. Thus, space does not exist beyond the ends of the Universe. However, it seems that space is finite but unbounded, meaning it does not have any 'edges' per se; it's like a four-dimensional equivalent of the surface of a balloon to a 2-dimensional creature.
If that does not make sense, it's because "common sense" does not prepare us for dealing with physically extreme situations, like contemplating what is "outside" space.
2007-03-19 07:25:42 · answer #3 · answered by poorcocoboiboi 6 · 3⤊ 1⤋
Space curves in on it's self.
2007-03-19 07:21:35 · answer #4 · answered by dv4unme 3 · 2⤊ 1⤋
No, it is apparently growing as we speak !!
2007-03-19 07:20:56 · answer #5 · answered by ? 7 · 1⤊ 3⤋
there're many sequence to the definition of space. if fact, it never ends. but then again. how about a multiverse?
2007-03-19 11:36:45 · answer #6 · answered by Nick 1 · 0⤊ 3⤋
I think the bigger question is, what's behind space, what is it expanding into!
2007-03-19 07:22:20 · answer #7 · answered by Ni 4 · 2⤊ 2⤋
I do not think space ends it just gets blocked with building and clutter...
2007-03-19 07:21:55 · answer #8 · answered by winter wonderland 3 · 0⤊ 8⤋