• Question: Light supposedly takes 8 minutes to reach earth, how is this possible in the vacuum of space?

    Asked by mijeffs to Gill on 19 Mar 2012.
    • Photo: Gill Menzies

      Gill Menzies answered on 19 Mar 2012:

      Light travels in photons which have wave and particle characteristics so they do not need a medium to travel through. That means they can travel through the vacuum of space unaffected until they bunp into matter – gas, solid, liquid …..

      Helpful ? 🙂