• Question: why is the earths gravity so strong???

    Asked by charlie to Peter on 5 Nov 2016.
    • Photo: Peter Boorman

      Peter Boorman answered on 5 Nov 2016:

      Hi 775pnug25,

      The strength of gravity from something depends on how heavy the thing is, and how far away it is. For that reason, the Earth’s gravity is particularly strong to us because it is very heavy (about 6,000,000,000,000,000,000,000,000 kg!!!) and because we are currently very close to the Earth (on the surface). This is also why astronauts feel less gravity because they are far away from the surface of the Earth.

      Peter

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