This supermassive black hole sits at a redshift of 4.75, and the light of its accretion disk traveled for 12.5 billion years to reach us. It was discovered in 2018, and is currently the most luminous quasar known. If it would be sitting in the center of our Milky Way, it would shine 10x brighter than a full moon.
The red channel of above image was taken through an infra-red filter, where most of the quasar's radiation is located.