• Question: How long will the earths core last ?

    Asked by Dr.Unknown to Sinead, Neil, Mark, Florence, Anne on 11 Nov 2015.
    • Photo: Florence McCarthy

      Florence McCarthy answered on 11 Nov 2015:

      There are many theories on this, whether the core will solidify or it loses its magnetic field but the best estimates are in billions of years.

    • Photo: Sinead Balgobin

      Sinead Balgobin answered on 11 Nov 2015:

      Best guess? Several billion years. It all depends on the radioactive decay of the elements in the core, which will take a long time.

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