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Does space even have edges? This is something that's always perplexed me. It blows my mind that space goes on for infinity. If space did have edges, then what is beyond these "edges"? Say you went all the way to the wall of space and stabbed a hole in the wall and went past the hole, what would be there? It's hard for me to think about what goes on out there in the unknown regions of outer deep space.
In a word, no. The difficulty you are having is in attempting to compare against a mental model that doesn't fit. "What is the color of one hand clapping?" is an example of where trying to mix concepts doesn't work. If you feel you need edges for safety, look up "klein bottle." It has edges and a space that is either interior or exterior space depending on how you define it, but still only one space. Another way of thinking about it might be to place the four dimensions we commonly refer to onto the surface of a globe in another dimension we cannot see. Once you have done that, find the edge of that globe. There is none.
At best, models can posit a starting point for time and matter/energy, but any end point or edge can't exist until time gets there, can it? You can try to say that the interface with time is an edge, but the other dimensions aren't there ahead of time, so there is nothing to place an edge in reference to.
caveat - the above are only crude ways of considering the subject. The color of one hand clapping is...
Does space even have edges? This is something that's always perplexed me. It blows my mind that space goes on for infinity. If space did have edges, then what is beyond these "edges"? Say you went all the way to the wall of space and stabbed a hole in the wall and went past the hole, what would be there? It's hard for me to think about what goes on out there in the unknown regions of outer deep space.
I am fascinated by all this space stuff too. Here is my layman's thinking: Since most objects in space are round and influenced by gravity, our universe, too, is round and also influenced by gravity.
I do believe our universe is contained within a larger entity.
Does space even have edges? This is something that's always perplexed me. It blows my mind that space goes on for infinity. If space did have edges, then what is beyond these "edges"? Say you went all the way to the wall of space and stabbed a hole in the wall and went past the hole, what would be there? It's hard for me to think about what goes on out there in the unknown regions of outer deep space.
For me the odd thought is if the universe is expanding what is it expanding into, wouldn't that space be part of the universe too that just hasn't been expanded into?
You can't see the end of the Universe because space is expanding faster than the speed of light. The simple way to explain this is if you were standing still and two cars on either side of you were racing away at 51% of the speed of light. They are moving away from each other at 102% the speed of light., they can see you but can't see the other car.
This expansion is equal in all directions, accelerating and the farther away galaxies are the faster they are moving away. Think if you had bungy cord with 5 balls equally spaced on it tied to the wall and consider that anchor point as earth. If you pull that bungy out to 50 feet in 5 seconds the ball closest to earth traveled 10 feet in 5 seconds, the one furthest away traveled 50 feet in 5 seconds.
You can't see the end of the Universe because space is expanding faster than the speed of light. The simple way to explain this is if you were standing still and two cars on either side of you were racing away at 51% of the speed of light. They are moving away from each other at 102% the speed of light., they can see you but can't see the other car...
Not true. You have to apply the rules of special relativity to calculate the relativistic velocities.
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