All Questions
Tagged with observable-universe space-time
6
questions
2
votes
1
answer
417
views
Would an observer standing at the edge of the "observable universe" perceive the expansion of space-time?
I got this bizarre idea in my mind, after reading SCP-3321
There, as a person gets teleported through a wormhole, ends up at the edge of the Observable Universe, 46 billion light-years away from Earth....
- 2,668
40
votes
3
answers
12k
views
How do scientists know that the distant parts of the universe obey the physical laws exactly as we observe around us?
How do scientists know that distant parts of the universe obey the physical laws exactly as we observe around us?
The question might look a bit odd but I am really stuck on my head. We know, ...
- 1,007
0
votes
0
answers
80
views
With the expansion of the universe is time also increasing?
With more space being created would there be more time in that new region formed? Is the over all universe increasing in time? This is my first question so go easy on me. PS. Would that also mean that ...
- 106
2
votes
3
answers
310
views
Is the shape of observable universe and shape of space same?
I have read that Euclidean space is considered as flat space and Minkowski space is flat space-time. So when we say our observable universe is flat are we saying that the space is flat or space-time ...
- 31
4
votes
2
answers
6k
views
How long would it take to reach the edge of the reachable universe?
How long would it take to reach the current edge of the reachable portion of the universe, with the following bounds in mind:
We figure out a way build a space ship to provide a constant 1 G ...
- 4,381
2
votes
1
answer
345
views
A universal reference point [duplicate]
I would like to use a system of co-ordinates (x,y,z,t) based on a specific well known point. My original choice (the center of the universe in the big bang theory, Bigbang0), was wrong as the universe ...
- 137