• Question: how much would someone weigh on mars if they weighed 10 stone on earth?

    Asked by comandopro456 to Beth on 12 Oct 2015.
    • Photo: Beth Healey

      Beth Healey answered on 12 Oct 2015:


      Hello! This is Adrianos from Greece, I am Beth’s predecessor as a research doctor for the European Space Agency in Antarctica and I am filling in for her today due to connectivity problems over there.

      Mars gravity is lower than the Earth’s, in practice it is about one third (around 38%). This is because Mars is a smaller planet as compared to the Earth and also less dense (its total mass is less, so its gravity is less as well). Now how many stones is that…? Between 3 and 4 by my reckoning!

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