If the universe is 13,7 billion years old how it could be infinitely large?
65985
How can the universe by infinite when it has known start and finite time since?
4087
Did spacetime start with the Big bang?
81495
Does the universe have a different age to different observers?
132889
Why does string theory have such a huge landscape?
106211
Is the universe isomorphic to a universal turing machine?
58042
Redshifting of Light and the expansion of the universe
18026
How can it be that the beginning universe had a high temperature and a low entropy at the same time?
136281
Is the universe expanding, or is everything in it getting smaller?
22682
If everything in the universe doubled in size overnight, would it be noticeable?
95004
Infinite Volume but Finite Surface Area
106384
What would the universe be like if Electroweak symmetry were unbroken?
67531
Universe being flat and why we can't see or access the space "behind" our universe plane?
65001
Universe from nothing?
95674
Expansion of the Universe, will light from some galaxies never reach us?
73729
Calculating the age of the Universe now and 30 billion years from now
20680
Does infinity exist in physical systems?
51361
How does the Hubble parameter change with the age of the universe?