TON 618

TON 618 is a hyperluminous quasar that possesses an ultramassive black hole which is the largest black hole ever found. It has been observed to be consuming galaxies' worth of matter and is shining with the brightness of a hundred trillion stars, visible from 18 billion light-years away. The back hole is 66 billion times the mass of our sun, greater than the mass of all the stars in the Milky Way galaxy combined.