• Question: if the Earth's axis were to tilt some more, would it be possible to see the northern lights in other places? and how much affect would it have on the seasons?

    Asked by p08deannap to Indi, Jarv, John, Ken, Vicky on 15 Mar 2012.
    • Photo: Jarvist Moore Frost

      Jarvist Moore Frost answered on 15 Mar 2012:


      The Northern Lights doesn’t depend on the geographic north pole (i.e. the point around where the Earth is spinning), nor is it the result of the tilt of the earth (other than the fact that this means it’s daytime for half a year at the geographic north pole!). In occurs around the magnetic North pole, as the Earth’s magnetic field stops the majority of the solar wind from hitting the atmosphere, except for near the magnetic poles where the field lines go through the atmosphere.
      When it’s really windy + the sun is very active, the northern lights are pushed further and further south. The sun is currently waking up, so this might be a good year to look for the aurora, particularly if you live in north England or Scotland.

      The Earth’s magnetic field actually periodically changes from North to South, it looks like our magnetic field is currently weakening & getting ready for one of these changes, so over the next few hundred or thousand years, the magnetic poles will weaken + break up, and you’ll have all kinds of weird behaviour as multiple poles wander around the surface of the earth before setting up home the other way round. During this time the aurora will be visible from all kinds of strange places on Earth, and perhaps more negatively we’ll be less well shielded from radiation until the field re-establishes itself.

    • Photo: John Prytherch

      John Prytherch answered on 15 Mar 2012:


      Great answer here from Jarvist, he’s said it all.

    • Photo: Vicky Young

      Vicky Young answered on 20 Mar 2012:


      Awesome question!

      It the Earth tilted it would affect the seasons but how much it affected them would depend how much it tilted.

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