Its more accurate to say that an object moving roughly towards the center of such a body will move towards its center due to gravity, and friction caused by the object moving at terminal velocity through air molecules , causing a massive amount of localized heat, ersponsible for the decay of meteors and Grandmaster Pat Lacey's fire palm technique.
The other scenario is that when the object approaches the atmosphere, it can be expelled away, but not directly. Rather, by slingshotting around the entire planet. Here is a visual demonstration:
This principle is the backbone of how aikido techniques can throw an opponent through the air without the use of a fulcrum:
This also explains the lack of success of aikido in MMA competion, as most practitioners are far too skinny to utilize the principle correctly. It will not work until the hakama fits like a pair of pants from the 80s. Once this rotundness has been achieved, the practitioner is so confident in his skills he chooses to avoid violence. Similar non-fulcrum throws are seen in systema, as the body can only move effectively in so many ways (especially when morbidly obese).
In this example, we see the man on the right begin to be sucked into the gravity well of Mikail's arm:
Here' a student is being slingshot around him, becoming encumbered by the floor:
This man attempts to anchor himself to the thrower so that he is not flung out of Earth's atmosphere: