What is the furthest galaxy that mankind know?

Question: What is the furthest galaxy that mankind know?
- Keywords:
  galaxy,
  space,
  superlative
Asked by OLIIII to Matthew on 19 Nov 2014.
- Matthew Camilleri answered on 19 Nov 2014:
  
  The furthest known galaxy is z8-GND-5296 and it was discovered using the Hubble Telescope in Hawaii. With more powerful telescope we might be able to discover new galaxies, and maybe who knows, evidence of other universes.

Question: What is the furthest galaxy that mankind know?