• Question: how many stars are there

    Asked by anon-210534 to Hannah on 6 Mar 2019. This question was also asked by anon-210331.
    • Photo: Hannah Dalgleish

      Hannah Dalgleish answered on 6 Mar 2019:

      1 billion trillion, maybe more! This is a rough estimate, which can be calculated by thinking about how many stars there are in each galaxy (around 100 billion) and how many galaxies there are (around 10 billion) in the universe. So that makes 100 billion x 10 billion which makes 1,000,000,000,000,000,000,000!

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