If you hang out in Saturn’s intense magnetic environment for a while, it’s going to leave a mark. That’s one conclusion from scientists who proudly released new maps yesterday (Dec. 9) of the planet’s icy moons, showing dark blotches on the surfaces of Dione, Rhea, and Tethys. Cassini has been at Saturn for more than … Continue reading "Saturn Smackdown! Icy Moons Burned By Radiation And Ions"