Does the Universe have finite number of particles?
106350
Dumbed-down explanation how scientists know the number of atoms in the universe?
45611
Why are all force particles bosons?
26329
Is there a shape with infinite area but finite perimeter?
151039
Why are there no elementary charged, spin-zero particles?
135755
Many-worlds: how often is the split how many are the universes? (And how do you model this mathematically.)
136281
Is the universe expanding, or is everything in it getting smaller?
38703
Do virtual particles actually physically exist?
78576
How to write “there exists an infinite number of”?
135584
Was the singularity at Big Bang perfectly uniform and if so, why did the universe lose its uniformity?
136349
Does an infinite random sequence contain all finite sequences?
58388
Counterexamples to the continuum hypothesis
129816
Experimental observation of matter/antimatter in the universe
101978
Are the implications of an infinite universe necessarily so unsettling
99070
Fermi's golden rule and infinite probablity?
111390
Size of Universe after inflation
95295
Is the Universe Past-Eternal?
119231
Number of Atoms in a Probability Space