Some say it could be virtually infinite.
The distance of vision is the key..
Imagine if you can see 100 miles max.
Then when you get to 99 miles you then see more universe 100 miles long.
Some say it could on like this for ever..
Other things that are weird is there is unusual gaps of pretty much nothing
and that there is a pull of part of our universe being drawn or sucked in one direction
like someone hooked up a vacuum cleaner and is pulling Galaxies all over to one direction.
They also say there is no Galactic "center"
But this has always bothered me because if there was a big bang i think there should be one !
I think we're just not recognizing it..I also think "they" got dark matter and dark energy very wrong.. i have my own theories.
Not long ago Mike Brown and a buddy posted proof of a new large planet.. "Planet X"
This was met with intense ridicule and i had to be the smart one of course and remind
all these cocky expert so called "geniuses" that the same technical scientific methodology
used to declare there was a black hole at the center of our Galaxy was then used to find Planet X
So i said to all of them so called "experts" with uber leet degree's..
Did you run your mouth and laugh and mock the scientific chick and her team
who found the Milky Way Galaxy ? and of course NONE of them had a word to say.
There is my opinion and then the wrong one
when i was a little child they said, that it is unlikely that there is another planet like earth or habitable planets at all. they said, that water is very rare and guess what? there is tons of water just on the next planet!
things changed a little bit in the last years.
humans still think, that it is unlikely that there are other intelligent species apart from us. lets talk again in 100-200 years