Saturn's moon Dione's lit hemisphere faces away from our Cassini spacecraft's camera, yet the moon's darkened surface features are dimly illuminated in this image, due to Saturnshine, light reflected off of Saturn. In this image, Dione (698 miles or 1,123 kilometers across) is above Saturn's day side, and the moon's night side is faintly illuminated by sunlight reflected off the planet's disk. Credit: NASA/JPL-Caltech/Space Science Institute NASAJPL #nasa #nasabeyond #space #cassini #saturn #dione #astronomy #science