text: does space keep on going? if you were too sent a space craft out to space would it keep on going or wouldn't. does space ever end? the first step in trying to understand the vastness of space is in the ability to equate it with the understanding in the size (length, width, height, volume) of a point.  both are equally unfathomable and for similar reasons.  you can think of our universe as an expanding point where we are inside.  everywhere you are inside of the universe(that is not within close proximity of other objects for the effect of gravity to express itself) you will notice everything is expanding away from you.    i believe what you are considering space is what i see as our universe.  our universe is what we can view, touch and explain through science we have developed.  space on the other hand is an infinitely dimensional medium, in which our universe was born.    our universe is nothing more than a 'disturbance' in space, and in space our universe exists as a point.  this point is a fraction of infinity, yet everything is a fraction of infinity.  so in the humble realization that we are nothing (a fraction of infinity), we are abstractly enlightened by the fact that we are equal to everything we can fathom, as it too is a fraction of infinity no matter how large.  so, through the realization that we are nothing comes the discovery that we are everything.    i believe this means everything that makes up the universe and space has its own existence or presence known to space and must exist.  the disappearance, or non-existance of any defined object and its position in space no matter how small, down to a point, would truly have mind boggling consequences.