All Questions
Tagged with observable-universe size
7
questions
5
votes
1
answer
402
views
Does "Angular Diameter Turnaround Point" solve the Great Wall Problem?
According to Wikipedia,
The Hercules–Corona Borealis Great Wall is the largest known structure in the observable universe, measuring approximately 10 billion light-years in length.
But since it's ...
4
votes
6
answers
6k
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Logically, how can the universe be infinite in size?
Many people have told me that the “universe doesn’t care what you think” in my regards to it being infinite in size, and I know something that seems logical doesn’t mean anything when measured by ...
- 59
0
votes
0
answers
153
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Volume of the observable universe [duplicate]
What about the volume of the observable universe?
Can we find it?
And what is the result in cubic light years?
1
vote
1
answer
170
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can we calculate the velocity of galaxies at the edge of the observable universe?
I read this post
Does the edge of the Universe travel faster than the speed of light?
but there was no calculation, so I tried it thusly:
The observable universe is 28.5 Gpc (gigaparsecs)
= 28500 ...
- 521
1
vote
0
answers
80
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Expansion of space - how do we end up with an unobservable region?
I've just been answering a question on this issue,in physics SE,and realised that my answer conceals a point I don't myself understand.
I understand that
The expansion of metric isn't affected by ...
- 1,030
1
vote
1
answer
668
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If the whole observable Universe is as big as planet Earth, how big would Earth be?
If the whole observable Universe is as big as planet Earth, how big would Earth be?
- 141
2
votes
1
answer
217
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Yet another Question about the expansion of universe
A galaxy 13 billion light-years distant is 94% of the way to the big bang. The universe was 800 million years old when the light was emitted. That galaxy today is traveling away from us at 94% of the ...
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