• Question: Theoretically if the Earths electromagnetic field disappeared what would happen to Earth and life on earth??

    Asked by anon-209998 to Maria on 14 Mar 2019.
    • Photo: Maria Walach

      Maria Walach answered on 14 Mar 2019:


      Good question! So, the Earth’s magnetic field protects us from the solar wind coming from the sun (the solar wind has a magnetic field and carries energetic particles).
      If we didn’t have the magnetic field, it would over time strip away the atmosphere! We believe that this is what has happened on Mars, which still has an atmosphere, but it’s very very thin in comparison to ours!
      Mars still has a really weak magnetic field, but we think it had a much stronger one a long time ago and then something happened and the magnetic field died away…

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