It's commonly thought that the Universe is Infinite.
It's curved ever so slightly, And if space time is curved, if it goes on far enough it could possibly and eventually just circle back around on itself, So the infinite Universe may not be infinite in all directions at all. It could just be an Infinite loop like these.... 
But have you ever thought about what that shape of an Infinite Universe actually looks like?
The universe itself is nearly 13.8 billion years old and as far as we can tell it's 93 billion light years across.
Look at the picture above, This bubble of sorts is what we call the observable Universe but what's past that?
Well the short answer is we have no idea... 😐
But what's likely there is simply more universe and the possibility of it going on Infinitely forever may not mean what you think.
According to Einstein,
"The fabric of space is considered to be a plan,
but not a completely flat plan."
