We do not need to put "la nia"? Simply "nia"?

Depends on who yoy ask :)

In the original use of "universe" it rederred to everything that exists, now it seems to he used often as a reference to a few dimensions which are observable from a point within thise dimensions and that has yet to be answered.

I figured that the basic meaning of "krom" is 'what amount(?),' and thus that the question of amount would come through in a rough translation. So, I wrote, "Are there other universes beyond ours?" But, I got the gong. If someone could explain the flavor of "krom" as used here, and the better way to translate it, I would appreciate it.

I would have said "la nia" - but "nia" isn't really wrong.

"La nia" is better because it's THE universe that belongs to us - not A universe that belongs to us.