• Question: how big is the milkey way

    Asked by #unicorn13 to Pete on 12 Nov 2017.
    • Photo: Pete Gwynne

      Pete Gwynne answered on 12 Nov 2017:

      really really big. the milky way is 180 thousand light years across, which means it takes light 180 thousand years to travel the distance. for comparison, it takes light about 8 minutes to get to us from the sun and our nearest star (Proxima Centauri) is about 4 light years away.
      unless you mean the chocolate bar, then it’s about 10 cm i think?

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