Does the UNIVERSE have a boundary or OUTER LIMIT?
What would you expect to see if you were to reach this boundary?
2007-07-19 15:11:42 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Universe has no boundary, it is infinite according to me.
Earth has boundary. You could leave earth, go away from earth. The atmosphere around earth begins when earth ends ( surface of earth ). Earth has boundary throughout it's surface.
The boundary of a circle like object like earth is it's surface. you cannot walk over earth like stupid and search for it's boundary; rather you walk away from earth to realize it's boundaries.
2007-07-19 15:24:13 · answer #1 · answered by SS 2 · 0⤊ 1⤋
The empty space that is the universe has no limit, it also has nothing.
But, the objects in space that we think of as the universe do have a limit. The big bang happened at a known point in time and the rate of acceleration of the particles and items created since the big bang is known and has a finite limit. So the universe has a limit to what it can hold.
Then there is the information limit. As the objects in the universe continue to expand then at some point they will be so far away that to reach us the light from them would have to exceed the speed of light. Therefore at some tremendous distance any information or signals from that edge of the universe would take longer to get to the Earth than the Earth has been in existence.
After the big bang the parts of the universe have been traveling away from each other in all directions at a set speed. Calculating this speed tells us the age of the Universe, but thanks to dark energy and dark matter the speed is increasing not decreasing, so the edge of the Universe is accelerating away from us at an increasing speed!
The Universe has to have a limit because no matter how tight the cosmic egg was that formed the big bang, it had a finite number of particles. If you have a finite amount of something then you have a limit to it and an end of it.
2007-07-20 01:09:55 · answer #2 · answered by Dan S 7 · 0⤊ 0⤋
If Earth is an electron going around a nucleus called the Sun, in a giant pressurized tank of a gas called the universe, then there is a boundary when you reach the edge of the tank.
Personally, and I have researched this in depth, I believe the Big Bang did not happen, there is no beginning of the universe, it is infinite space-time-matter-energy reality.
The word in German for the universe is Weltall or normally shorten to just "ALL".
That says it all.
2007-07-20 01:05:11 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Probably the universe is finite but unbounded. One way to look at it is that if you set out to go to the edge of the universe you would never reach it because the universe would just keep expanding in front of you faster than you could travel through it.
2007-07-19 23:38:59 · answer #4 · answered by steve b 3 · 0⤊ 0⤋
does a sphere?
could you travel to the "edge of the earth"?
the universe will twist in such a way that you will end up going backwards while still going forewards.
a good question also is "what was there before time?"
2007-07-19 22:20:24 · answer #5 · answered by devinthedragon 5 · 1⤊ 0⤋
The universe has no edge. You can't fall off the universe.
2007-07-19 22:24:08 · answer #6 · answered by ZikZak 6 · 0⤊ 0⤋
It depends if it was created or not.
2007-07-20 02:38:35 · answer #7 · answered by ROBERT P 7 · 0⤊ 0⤋