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Spzi , (edited )

There is no area or volume of zero gravity inside planets or stars. It exists as a point, but since it’s a point, it has zero size.

Go in any direction from that point, no matter how little. Now more mass is behind you than in front of you; you feel gravity pulling you back.

Edit: Seems I was wrong, sorry.

“If the body is a spherically symmetric shell (i.e., a hollow ball), no net gravitational force is exerted by the shell on any object inside, regardless of the object’s location within the shell.”

Jeredin OP ,
@Jeredin@lemm.ee avatar

So it’s not zero but low gravity and increases the more mass-I leave behind me as I move out from the center?

Spzi ,

That’s exactly what I meant, yes.

I’m not sure if it was correct though, edited my previous comment. Though maybe you did not ask about hollow bodies.

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