Big black holes in little galaxies, rogue black holes and other behemoths could offer clues to cosmic evolution.
Every Black Hole Contains Another Universe?
သိပၸံနွင့္နည္းပညာဗဟုသုတမ်ား မ်
All you need to know about the history of black holes
Monster black hole lurks in the early universe
What is a black hole? University of Chicago News
In the young universe, black holes may have formed first
Astronomers can't figure out why some black holes got so big so fast
Weird black holes may hold secrets of the early universe
Mystery of the first supermassive black holes solved at last
ScienceNews