• Question: how long is the milkyway?

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      Asked by DOGS to Iain on 7 Mar 2016.
      • Photo: Iain McLellan

        Iain McLellan answered on 7 Mar 2016:

        Hi,

        That’s not my area of research however I do have a telescope that I use to look at the Moon and the planets. I looked up how big the Milky Way is 100,000 light years wide which means light takes 100,000 years to go from one side to the other.

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