If we could travel at several million times the speed of light we could, in theory, reach the edge of the universe.
Assuming there is an edge. Honestly it's never going to happen in my life time, so I'm not even going to stress over it. I'm going to spend my time trying to better the world, since I'll be long dead before we even scratch the surface of that question. I find it better left to philosophers and astronomers
Definitely would be interesting to find out, though. I just don't have enough information to make even an educated guess.
I can't remember where it is, but there was someone who had a neat definition of it, something regarding a sphere and eternal roundless!!! - If that helps (if that person is still about, feel free to mention it).
Although the thought can be somewhat frightening, there is nothing anyone can do to find out. I doubt humanity ever will, we will probably kill ourselves first, or, if not, we wont be able to reach it.
Space (the universe) is growing, so whenever we thought we were at the edge, there would be more distance to travel. Another way of looking at it, is say we reach the edge, and enter it, we would just re-enter at the other side.
Think of it as a room with two doors, you walk through one and end up walking back into the room through the other!
Hey, i have the ultimate question and no its not the meaning of life.
What do you believe is outside space. It can't just go on forever
It can go on forever, its just the human mind can't fully comprehend such a though seeing as nothing lasts forever in our lives. What lies outside the universe? Well theoretically nothing, seeing as the universe encompasses everything there is. Practically thought there was nothing there but empty space previous to the universes' expansion into it. However space can only be described in terms of the distance between physical objects (such as planets and galaxies). You can not measure the distance between nothing and nothing, nor can you observe any change in this distance if you have no point of reference. If we assume our universe contains all the matter there is, and we can observe how far away this matter is from the central point, from where it all initially started, than anything (empty space) beyond this matter is meaningless as we cannot measure it. Because of this we say there is nothing outside our universe. I'm not sure if that all makes sense, but hopefully it does.
If I'm not mistaken we are also not sure if our universe contains enough matter to sustain this expansion indefinitely, whether it will eventually stop expanding and remain that size or whether it will stop expanding and then begin to collapse back in on itself. That's why there's so much fuss about "dark matter", to find if our universe contains enough matter not to implode in on itself. (Although that wont be happening any time soon so don't worry! )
In short, we don’t really know but like to make theories and assumptions to make ourselves feel better and more secure.
It's like Energizer, it just keeps going! Maybe, MAYBE, if you travel far enough, you MIGHT encounter other planets. But, as stated in other posts, we have no idea how far away the actual edge of the universe is.
(Seriously though, I think space is always expanding. I think it will continue expanding for ever, whatever happens. (Except the case of someone setting up us the bomb))
(Seriously though, I think space is always expanding. I think it will continue expanding for ever, whatever happens. (Except the case of someone setting up us the bomb))
You mean if someone blows up space? I don't think that is possible...
I can't see why anybody hasn't mentioned this, but I thought I'd add this philosopihcal point of view in...
When you reach the end of the space as we know it, you travel onto white backing because either the film strip has run out or the black pencils are all broken. Simple really.
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Re: The ultimate q. 
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