If gravity pulls everything towards it, why isn’t the Earth getting smaller by being pulled into the middle?

Question

If gravity pulls everything towards it, why isn’t the Earth getting smaller by being pulled into the middle?

In: 1

Answer 1

It already did. It’s like how when you crumple aluminum foil, you can only crumple it into a ball of a certain size. A machine might be able to crush it into a smaller ball. But in the case of the Earth, it’s trying to crush itself. It can only crush itself to a certain smallness, and there’s no machine equivalent to crush it further.