The universe is large.
Very large.
How large?
This large.
This is a zoom-in video of a 69,536 x 22,230, 1.5 billion-pixel, 4.3GB photo of a galaxy taken by Hubble - and it's not even our galaxy. It's Andromeda. It's the largest picture ever of our nearest galactic neighbour, which we will never reach.
There are 100 billion galaxies in the universe, as far as we can tell. Each has 100 billion suns. And 90% of all the mass they contain we can't even see.