Sphere Moves over Parking Lot

A sphere-like object smoothly flies from right to left.

In the start, you will think it's a balloon that has gone adrift from a nearby birthday party.

But then, the maneuvers that it performs shows that it was being controlled and propelled by some kind of force.

The sphere continues to move around the parking lot and finally comes in front of a truck.

That's when something unnatural happens, it suddenly disappears in thin air.