the moon wave matter from itself to the space through shadow
all_matter is inside_outer_space. moons_gravity is very_weak. gravity is force_in_universe. orbiting is translational_vibration. lunar_oceanus is lunar_stuff. outer_space is vacuum. earth is ball_flies_thru_space. sometimes_whales_spin_around_while is breaching. gravitational_waves is ripples_in_fabric_of_space_time. shadow is presence.