• Question: what is the biggest galaxy?

    Asked by nami123 to Ajay, Kate, Kuntal, Pip, Reka on 10 Nov 2016. This question was also asked by Aats.
    • Photo: Reka Nagy

      Reka Nagy answered on 10 Nov 2016:

      It’s a galaxy with the rather uninspiring name of IC 1101. It has a diameter of about 4 million light years – that is, it would take light (which is already really, really fast, travelling at 300,000 kilometers per second) 4 million years to travel through it!

      In comparison, our own Milky Way is “only” 100,000 light-years in diameter, which is 40 times smaller.

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