Gravity doesn't push, it pulls
Not according to today's physics community. The theory now is that gravity is a force that PUSHES inward on all objects in the universe. The more mass the object has, the more force is applied to it. But I am no physicist
But it has something to do with the theories they are coming up with that try to define the origins of the universe, rate of expansion, blah... blah, blah... blah, blah.
All I really need to know is that if the roadrunner drops the anvil off a cliff, it will hit the coyote and turn him into an accordion.