Question: how come as soon as you leave earth there is less gravity ?

Ioanna Bezirtzoglou answered on 19 May 2025:

Hi Megan, on earth, gravity is found at the core of our planet. Hence the further away you go from the core, the less gravity you have. For example, if you stand close to a fire, you will feel very hot – but the further you step away the less strong the heat is going to be! This is similar with how gravity works. Even if in our case it is thousands and thousands of kilometers instead of a few steps to even detect a change in gravity! Hence – astronauts ‘float’ when they are in space as they are sop far from the core of the earth that they do not get affected by gravity anymore 🙂