would be a terrible waste of all that space out there, no ? lol
the size of the universe - atleast known to us is close to 100 billion LIGHT YEARS, across.
again, just known* to us, humans. past that we cant see.
Also, cant see inside black holes.
But you have to consider this:
A. If you believe in God & the bible, do you really believe he made others elsewhere?
B. If you believe in science, and that we are here by chance, whatever happened was a once in an eternity event in which everything came together perfectly, and it's highly doubtful that it has happened twice, or more, somewhere else
One Christian scientist gave this example:
There's an old airport with abandoned junk airplanes
A tornado comes through
When it passes, some of the planes are magically assembled together again, AND they run!
Sounds impossible right?
Well if we were created per a big bang or whatever else, something just as impossible, could it really happen AGAIN?
Personally I say the odds are well against it
I'm kind of back & forth on it all