Thank you for your swift reply,
I'm curious about whether gravity coming from 2 directions cancels out, or whether it pulls in both directions. I think you're saying that it cancels out. To clarify, what if something was in the hollow centre of a planet, would it be pulled apart or 'float' in...
If an object is between 2 large masses with high gravity, that haven't come together (gravity of other large masses is keeping them apart) does the object between them get pulled violently apart or does the gravity balance out?