Out of this world We have Talk about rolling object when there is gravity now what about when there in no gravity. So you can't  roll like how you would on earth but what is rolling but spinning. similar to how a moving object has inertia a rotating object has a similar rotational inertia. this is the principle is used by gyroscopes and bicycles. If a rotating object 's mass t is distributed away from mass becomes more difficult to stop or change how it is rotating. This because the forces spinning the object is producing a moment or torque parallel to the axis of rotation. This means that when you spin something it won't easily tip over. That's why bikes and gyroscopes won't tip over. Awesome video of some physic principles of things spinning in space