Uncovering the Masses of the Largest Supermassive Black Holes
For the first time, scientists have discovered two of the largest and most massive supermassive black holes known to exist in the universe. Located in a pair of merging galaxies 4 billion light years away, these two supermassive black holes have masses estimated to be 21 billion and 34 billion times the mass of our sun. This discovery provides a unique opportunity to study the growth of the earliest supermassive black holes and their influence on the formation of galaxies.
source: Phys.org