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/sci/ - Science & Math

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12146163 No.12146163 [Reply] [Original]

What is at the edge of the Universe? Can you reach it?

>> No.12146169

Beyond the edge of the earth.

>> No.12146207
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12146207

>>12146163

>> No.12146229

>>12146163

Pepe the Frog is at the edge of the universe.

If you try getting past him, he’ll throw you back.

>> No.12146237

>>12146163
Just go through the mirror.

>> No.12146244

>>12146163
Technically, you are the edge of the universe.
You are the youngest part of the observable universe. Everywhere else you look is slightly older than where you are. Andromeda is a million years behind. The Moon is a second behind. YOU are on the edge.

If you meant like trying to reach the CMB source like in the show Stargate Universe, then no. Because if you traveled there, the CMB that you see would age until it looked like the regular universe, then there would be another CMB source billions of light years away and you made no progress. This would happen even if you had FTL travel (I think) because once you get there, you start seeing the light that's billions of years older than the light you see from here. That location has its own CMB source even "now".
This might be wrong though since McCulloch's observer-dependent cosmological model seems likely to be true. It states that the CMB isn't actually real, it's just that the observer hasn't received enough quantum information about the CMB yet for that CMB to evolve into galaxies, etc. This observer-dependence when looking back in time would mean that int he case of FTL you actually WOULD be able to go see the CMB up close. I actually like this model.

>> No.12146253

>>12146163
It's not any more the "edge" of the universe than the horizon is the "edge" of earth.
Even if you had instant transmission like goku and could instantly travel to the "edge" of the universe you would just find yourself looking at a universe the appears almost identical to ours because the universe is isotropic and homogeneous.
If you had a really powerful telescope you could turn around and look in earth's direction and watch ancient history unfold live as the light catches up to you.