Well actually you don't need to move the planet, it does it on its ownOriginally posted by drdroid
Actually, there is. Although, true, there is no imoveable object, there is in fact an immovable object. from a physical point of view, a human being by himself can't push Terra(Earth) across the solar system. So to answer your question... to a human on it, a planet is an immovable object.
Same thing with all other objects.