What will happen if we suppose to be able to add mass at the universe? For example doubling the mass of the ordinary matter?
We found VY Canis Majoris, a star so big it can't even be seen in scaled illustratations with the sun itself. However, we stop at particle physics, or quantum mechanics, i.e. particles, subatomic, ...
Is the total mass of the universe constant in time?
So, I'm not too physics savvy but I am curious to ask. Is there a finite amount of mass in the universe? or is there more and more being created from somewhere or something? If the universe is ...
Do we consider the amount of matter in the universe to be "infinite"? Or do we have an idea about "how much" there is?
This question has arisen from a wish to understand an end-of-universe scenario: heat death. Are time and mass intrinsically linked? If so, does time "run slower" (whatever that may mean) in a ...