A2 (59x 42cm) Poster. Saturn silhouetted. Cassini spacecraft image of Saturn & its ring system with the Sun directly behind. The view revealed two previously unknown rings. One, associated with the orbits of the moons Janus & Epimetheus, lies in between the outer edge of the bright main rings & the thin grey/brown G Ring. The other, associated with the orbit of the moon Pallene, lies just inside the broad & diffuse outer E ring.