How can the universe be homogeneous and isotropic while it has started with a big bang?
4276
Did the Big Bang happen at a point?
78910
What causes matter to initially rotate/spin/orbit?
89301
Is the total energy of the universe constant?
64715
How is it possible that we see light from shortly after the big bang?
24669
Time dilation at the Big Bang
38714
Can a metric in General Relativity, Supergravity, String Theory, etc., be asymmetric?
24445
How can an infinite universe expand?
117108
Is the Universe being dragged into a singularity rather than expanding?
103492
If the Big Bang started in a state of low entropy then shouldn't the Big Crunch be in a state of low entropy also?
37587
What has been proved about the big bang, and what has not?
130146
Smolin on Cosmological selection and neutron stars
29994
Why are some galaxies flat?
139471
What if the size of the Universe doubled?
40338
Ordinary Differential Equations used in Cosmology
76637
Why aren't particles constantly "measured" by the whole universe?
3644
Symmetrical twin paradox in a closed universe
54636
Dark Energy / Accelerating universe: naive question