Largest known black hole found in galaxy Abell 1201

This 'ultramassive' black hole can fit in 30 billion Suns

What are the chances of a black hole swallowing the Earth? Kuya Kim answers

One of the biggest black holes ever detected is actually bigger than previously thought

Astronomers detect rare 'ultramassive' black hole, about 33 billion times the mass of the Sun, using gravitational lensing - ABC News

Astronomers Think They've Found One of the Biggest Black Holes Ever Seen - Universe Today

Phoenix A vs Milky Way vs Abell 1201

Astronomers may have just found the biggest supermassive black hole ever detected

What are the implications of the discovery by British astronomers of a supermassive black hole, 30 billion times the mass of the Sun? - Quora

Ultramassive Black Hole of 33 Billion Solar Masses Discovered by UK Scientists - SciQuest