It's not possible. Our detection of expansion is not based on the apparent size of other objects in the Universe, it's based off of things like . We can accurately guage distances to faraway galaxies using things like stars.
In other words, we know for a fact that the Universe is currently expanding and the farther away something is from us the faster it is moving away from us.
We know for a fact that there's a redshift but we guess it's because things are moving farther away. No one's out there checking.
We know for a fact that there's a redshift but we guess it's because things are moving farther away. No one's
out there checkingproposed a different theory that better explains the observation that the more distant a galaxy the larger its redshift.
FTFY
Just because no one's proposed a better theory doesn't mean the current one is correct. No one's out there checking that the stars are actually moving, it's basically a religion at this point counting angels dancing on pinheads.
But I have always wondered, expanding towards what? What is there beyond the edge of the universe...
That's the confusing part. You're mind has a terrible time with "nothing." Nothing doesn't mean empty space, it means nothing. There isn't anything to expand into. Even if there was it's impossible for us to know anything about it, and it's impossible for it to have any influence on our physical universe unless the speed of light is not constant.
Rather of thinking of it as "nothing" I would rather view it as "devoid of anything" as it is easier to wrap your head around, but yeah, even then it is impossible for us to understand the concept of "nothingness".
I have this weird theory where the universe isn't expanding so much as it is being "sucked" from the outside, like how a ballon inflates inside a low air pressure room.
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