2007-02-19 02:59:38 · 19 answers · asked by Made in America 7 in Science & Mathematics ➔ Astronomy & Space
Its not expanding in to anything.
Imagine a computer monitor playing the ancient game asteroids - you can fly off the screen and you just come on the other side - the universe is like that. The screen is expanding but there's nothing outside it.
2007-02-19 03:05:13 · answer #1 · answered by Leviathan 6 · 2⤊ 0⤋
You can think about this by a simple analogy. Take an elastic band and cut it so that it has two ends. This is your 1D universe. Now, it has length L, but if you pull on both ends then it will have length rL, where r>1 is a dimensionless constant representing the expansion. Now consider two points on that band that are originally separated by distance X. After stretching, they'll be separated by rX, regardless of their positions with respect to the edges of the elastic. So this result applies even if you had an elastic where L is very large. Even if L is infinite, you can still have the local effects of expansion between the two points through the parameter r; hence there is no need to ask into where the elastic is expanding.
2007-02-19 12:23:40 · answer #2 · answered by Matthew S 2 · 0⤊ 0⤋
Astronomers don't know yet, from what I've heard. I think it depends on how much dark matter or something there is in the universe. It may just forever expand, or it may eventually contract back onto itself and expand again.
2007-02-19 11:02:53 · answer #3 · answered by merlin_steele 6 · 1⤊ 0⤋
Space and time are properties of the universe and beyond the universe what exists, we can't know. There is no way for information to travel out of the universe or into the universe from outside as far as we know.
2007-02-19 11:04:47 · answer #4 · answered by Swamy 7 · 1⤊ 0⤋
It is expanding into nothing.
2007-02-19 11:35:43 · answer #5 · answered by bldudas 4 · 0⤊ 0⤋
It's expanding into your mom
2007-02-19 11:04:29 · answer #6 · answered by Anonymous · 0⤊ 1⤋
it's expanding into nothing
2007-02-19 14:18:17 · answer #7 · answered by umyxyz_rockstar 2 · 0⤊ 0⤋
its expanding into nothing. just blackness
2007-02-19 11:02:33 · answer #8 · answered by alsimpson1234 2 · 0⤊ 0⤋
uh another space for the universe, it can never expand, its limitless
2007-02-19 11:03:22 · answer #9 · answered by thenewhorzta 3 · 0⤊ 0⤋
We are about to find out soon in the coming years. I guess!
2007-02-19 11:03:39 · answer #10 · answered by joysam 【ツ】 4 · 0⤊ 0⤋