Quote:
Originally Posted by Wormius
The thing is, every point of mass has gravity that acts in all directions. Given enough time and enough material, those small masses start to gobble up smaller bits of dust and then rock nearby. All the while, gravity still acts in all directions, very spherical like, that is why large bodies in space that are near any kind of debris they can collect becomes spherical. Not some flat disk.
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See Saturn's rings. Lawyered.