All Questions
6
questions
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votes
1
answer
191
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Are black holes the edge of our universe?
Are black holes the actual edge of the universe? Because spacetime is another dimension, I would assume the universe doesn’t have perceived corners or edges. At least humans cannot perceive it.
The ...
- 11
0
votes
0
answers
50
views
Big crunch scenario, would black holes form?
Imagine a big crunch scenario in which everything (or almost everything as for I have other doubts, eg about entropy...) rolls back.
Shouldn't the contracting universe reach a point of density at ...
- 1,729
1
vote
1
answer
260
views
Is it possible to say we are inside a black hole? [closed]
Why I am asking is because I read about it on the internet. But if that is true, does it imply the following?
If one is inside a black hole than he could be seen as trapped in a space-time ...
- 63
2
votes
1
answer
194
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How can a black hole destroy the curvature of the universe?
I know that the net curvature of the universe is zero due to the positive mass and the dark matter. But we say that a black hole creates infinite curvature in space-time. So, there must be a negative ...
- 161
1
vote
2
answers
652
views
Can a sufficiently large black hole be singularity-free?
This came to me after reading that a black-hole that has the mass of the observable universe will also have an event horizon that covers the observable universe.
Since the definition of a black hole ...
- 589
-1
votes
1
answer
341
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What happens to black holes if/when the universe "ends"
I've heard several ideas about what happens to the universe when it dies, and they range from infinite expansion and heat death, to a "big crunch".
In the event that something like a "big crunch" ...
- 1,340