Skip to main content

All Questions

Tagged with
2 votes
1 answer
355 views

Because the Universe is expanding, what is it taking up?

It is my understanding that the universe is expanding and that matter takes up space. While the universe only contains small percent of matter, wouldn't expansion indicate that the universe is ...
depperm's user avatar
  • 129
14 votes
1 answer
4k views

At the Big Bang, when everything was close together, why did it not "collide", violating Planck length or Pauli Exclusion Principle?

How could so much matter, or "all" in fact, have been concentrated in a smaller universe without being in the actual same place? Why did this not result in undercutting the Planck Length or ...
nilshi's user avatar
  • 259
2 votes
0 answers
55 views

How is the big bang a plausible theory? [duplicate]

In the Big Bang Theory, it is said that it started with a small speck of matter, yet we have an unimaginable mass of expanding universe which is assumed as immeasurable. If the theory of "Matter ...
Joss Burton's user avatar
1 vote
1 answer
180 views

Why more matter still left after collision with anti-matter?

Question implies all, why is that? Why we exist even after equally creation of matter and anti-matter, any possible exception?
Rahul Singh's user avatar
6 votes
1 answer
213 views

Why Helium could be produced in first minutes of big bang but not heavier elements

At what extent could be sure that no heavier elements than helium could be produced, if we know that matter in universe today is about 25% composed on helium, why could be so sure that the kind of ...
AMA1123's user avatar
  • 101
22 votes
7 answers
9k views

Do we know the exact spot where big bang took place?

If you rewind the universe back 14,7 billion years, all matter were in one spot, and then started expanding. Do we know where this is in reference to our own solar system? And is there anything there? ...
bogen's user avatar
  • 2,356