Movie: Cassini Crosses Saturns Ring Plane . ... To find out, NASA aimed cameras from the Cassini spacecraft right at Saturn's rings as the robotic explorer passed from the sunlit side of the rings to the shadowed side . Resulting images from a vantage point outside the rings and most moons but inside the orbit of Titan have been gathered together in the above time-lapse movie . ... The extreme thinness of Saturn's rings can be appreciated from frames taken near the crossing time. ...