which is the biggest black hole – Space Telescope Zone

Question: which is the biggest black hole
- Keywords:
  black hole
Asked by 523sptm26 to Angus, Ollie on 16 Mar 2018. This question was also asked by 477sptm29.
- Alexander Burke answered on 16 Mar 2018:
  
  There is an absolute beast of a black hole which is around 21 billion times heavier than our own sun. This black hole is so unbelievably massive that, if you were to fly into one on a plane (assuming you wouldn’t be sucked in!), then it would take between 200 thousand to 2 million years to fly into! This is the largest one we have found to date!

Question: which is the biggest black hole