• Question: What is the biggest black hole?

    Asked by anon-219942 to Declan, Bella on 20 Jun 2019. This question was also asked by anon-219115.
    • Photo: Declan Jonckers

      Declan Jonckers answered on 20 Jun 2019:

      I don’t know. But the one at the centre of our galaxy is so big, we call it a supermassive blackhole!

    • Photo: Bella Boulderstone

      Bella Boulderstone answered on 20 Jun 2019:

      The supermassive black holes that live at the center of galaxies are billions of times the mass of the sun. It’s tricky to be able to measure these but we do know that the size of the galaxy and the size of the black hole are linked. So in the biggest galaxies live the biggest supermassive black holes. I don’t know precisely which one is the biggest and there’s definitely a chance we haven’t even found that galaxy yet.

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