All Questions
10
questions
3
votes
2
answers
273
views
How can spacetime be expanding faster than the speed of light? [duplicate]
How can spacetime be expanding faster than the speed of light when the speed of light is the speed limit of the universe?
- 117
2
votes
0
answers
68
views
What would happen if universe wouldn’t accelerate faster than speed of light? [closed]
Its quite stunning to assume that not only space-time is expanding but also the rate of expansion is greather that speed of light.
But after the initial surprise, I ve been wondering if that fenomena ...
- 21
3
votes
1
answer
95
views
Is it possible that the universe is not expanding faster than the speed of light? [closed]
What if the speed of light increases proportionately to the expansion of space? Is it possible that light traveling in the medium of space gets to travel faster if the medium is expanding? An analogy ...
- 31
0
votes
0
answers
27
views
How Can the Universe Be Bigger Than It is Old? [duplicate]
My question is this: If we can look back to roughly 500m years after the big bang and have estimated the age of the universe at 13.7B years, why is the galaxy we are looking at not a part of the non-...
- 2,706
0
votes
2
answers
125
views
Scenario of Crossing the speed limit of our Universe [duplicate]
One of Important conclusions of Einstein's Theory of Relativity is that we cannot cross or break the speed limit set by the laws of physics that is the speed of causality
consider this scenario:
...
- 290
1
vote
0
answers
60
views
Hubble's Law paradigm [duplicate]
I have seen a video on Khan Academy about the Hubble's law.
And my question is if the "Hubble's constant" increases by (70.6 km/sec)/parsec then could we reach such a velocity that it gets faster ...
- 11
1
vote
0
answers
812
views
How is the Universe expanding faster than the speed of light? [duplicate]
I was watching a youtube video about the expansion of the universe. So the video said that the universe is expanding at a speed faster than the speed of light. I have 2 questions about that. My first ...
- 49
4
votes
1
answer
215
views
Since space expands (and can theoretically contract) faster than light, does that mean that in a big crunch information could travel FTL?
Layperson here. In a theoretical big crunch with space contracting faster than the speed of light, would information be travelling faster than speed of light? Because the points A and B themselves ...
- 43
6
votes
4
answers
3k
views
Expansion of the Universe, will light from some galaxies never reach us?
Is it true that the light from some galaxies will never reach us?
The explanation for that is that the Universe expanding faster than the speed of light. But, if the speed of light is constant in ...
- 815
1
vote
1
answer
161
views
What is the age of universe? [closed]
As we know at the time of big bang as mentioned by the scientist the universe expanded faster than the speed of light. So does it mean that at that time all the particles present travelled in the time ...
- 2,251