Orbital Motion
Gravity always makes things fall. The
question is whether the path of the fall intersects any surface. The
shape of the orbit depends on the velocity the body has at a given point. Low
velocity
will make the point the highest, high velocity will
make it the lowest (circular orbits mean it has to be “just right”). If the
velocity is too high, the orbit will be a hyperbola instead of an ellipse, and the
body will not return.