Linked Questions

53
votes
4answers
5k views

Does the universe have a center? [duplicate]

If the big bang was the birth of everything, and the big bang was an event in the sense that it had a location and a time (time 0), wouldn't that mean that our universe has a center? Where was the ...
2
votes
3answers
2k views

Why is the singularity of the Big Bang not considered to be the center of the Universe? [duplicate]

If the universe is expanding, then at some time in the past, it must have started from a single point but why this point is not the center of the Universe. Just like the singularity of black holes is ...
1
vote
1answer
2k views

Can space be created or destroyed [duplicate]

Wikipedia says It appears that space was created in the Big Bang, 13.8 billion years ago This seems a little off to me: can we say something has been created if there was no before it had ...
5
votes
1answer
261 views

Is space itself expanding or is it just momentum from the Big Bang carrying things apart? [duplicate]

So, we observe that galaxies are moving apart (on average) and the further away from us they are the faster they are moving away from us. If space was expanding that would explain this. However, I ...
-1
votes
1answer
444 views

The infinitely dense point from which the universe allegedly originated - the universe must expand, right? [duplicate]

This is all based on some thoughts this article gave me. Assertions The big bang theory is currently accepted theory about the origin of the universe Infinitely dense implies some kind of material (...
2
votes
0answers
711 views

What was the size of universe at big bang [duplicate]

While self studying cosmology as well as reading around I can't find a satisfactory answer to this question. My thinking is that in principle universe could have started already infinite or as a thiny ...
0
votes
3answers
231 views

Why does the early universe look so big in a telescope? [duplicate]

As we look into the Deep Field, we see the Hubble photos of early galaxies up to only $400$ millions years old: Wikipedia: List of the most distant astronomical objects Because there is no center of ...
1
vote
2answers
225 views

“Before” the Big Bang was the Universe really compressed into a mathematical point? [duplicate]

A couple of weeks ago a teacher of mine (I'm taking mathematics) was giving a final inspiring lecture about how fundamental Math is to every possible universe. During the lecture though, he said that ...
-1
votes
1answer
325 views

What lies at the very edge of the expanding universe? [duplicate]

We all know that the universe is expanding at an accelerated rate and it might appear much like a soap bubble. That is where the phrase dark energy whose essence is unknown and which is thought to ...
-1
votes
1answer
383 views

Why did the big bang explode if there is no oxygen in space? [duplicate]

If there is no oxygen in space, where the super dense singular object was suspended, then why did it explode because this reaction needs oxygen?
2
votes
1answer
345 views

How can the universe by infinite when it has known start and finite time since? [duplicate]

Just watched the 'How Big is the Universe?' TV program and it indicated that the universe is believed to be infinite in size. They used an approach involving measuring the internal angles of triangles....
0
votes
1answer
198 views

Where is the universe expanding from? [duplicate]

It seems to be quite a common question to ask "what is the universe expanding into?" However I want to ask "where is the universe expanding from?" Is there a "centre of expansion" of our universe ...
1
vote
3answers
117 views

Is there a contradiction between isotropy and the Big Bang? [duplicate]

Disclaimer: I'm not asking whether the Big Bang happened at a point. I'm asking whether the fact that the universe is isotropic and that the Big Bang happened contradict each other. To be honest I am ...
1
vote
3answers
211 views

If the universe turns out to be infinite, would we have to reject the Big Bang Theory? [duplicate]

As per my understanding of the big bang theory, it stipulates that the entire universe was contained in this single point of "pure energy" and that the big bang happened when the universe rapidly ...
0
votes
1answer
176 views

Is the Big Bang instant considered a beginning of all the coordinates of our universe? [duplicate]

Is the Big Bang instant considered a beginning of all the coordinates of our universe? If we consider the BB to be the Beginning of of our universe, can we call this the Origin of all of the 3 ...

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