<p>Do we know what happens at the boundary of the universe, what are some theories about it? Does space time differ at the boundary? Do things become larger at the boundary? Do the trajectories curve and force you to remain at the edge instead of crossing it? What are some theories about the edge of the universe?</p>

CC BY-SA 4.0
2019-09-11T19:40:53.387Z
The universe doesn't have an edge. However, there are several [cosmological horizons](https://en.wikipedia.org/wiki/Cosmological_horizon).
PM 2Ring
CC BY-SA 4.0
2019-09-12T00:58:36.253Z
Related: [Did the Big Bang happen at a point?](https://physics.stackexchange.com/q/136860/32426)
peterh
CC BY-SA 4.0
2019-09-18T10:45:31.070Z
I read the linked answer and it sucks. Can I take a whack at a better one here?
Maury Markowitz
CC BY-SA 4.0
2019-09-18T12:02:49.230Z
Go ahead. I also laughed, because the answers on that question were really bad and doesn't really answer this one.
yodicafilms
<universe><theories>
Do we know what happens at the boundary of the universe, what are some theories about it?
yodicafilms
# Do we know what happens at the boundary of the universe, what are some theories about it?

(Asked by: username_0 on 2019-09-11)

Do we know what happens at the boundary of the universe, what are some theories about it? Does space time differ at the boundary? Do things become larger at the boundary? Do the trajectories curve and force you to remain at the edge instead of crossing it? What are some theories about the edge of the universe?

**Tags:** universe, theories

> **Comments:**
> **username_1**: The universe doesn't have an edge. However, there are several [cosmological horizons](https://en.wikipedia.org/wiki/Cosmological_horizon).  
> **username_2**: Related: [Did the Big Bang happen at a point?](https://physics.stackexchange.com/q/136860/32426)  
> **username_3**: I read the linked answer and it sucks. Can I take a whack at a better one here?  
> **username_0**: Go ahead. I also laughed, because the answers on that question were really bad and doesn't really answer this one.  

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## 0 answers

