This galaxy has not been seen before because its further then any other galaxy we can see with Hubble.
The Galaxy is so small that Hubble can not detect it.
3. THE MULTIVERSE!
This is not a galaxy but lots of Universes are in it!So 10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 are unkown!
These 2 galaxies are 2 of the 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000 galaxies unkown.