Look carefully in this image obtained May 10:
Did you guess the Sun is off to the left? If so, congratulations: you spotted the thin sliver of brightly lit terrain in the upper left of Enceladus. The right hemisphere in this image is lit only by Saturnshine. The camera was adjusted for low light conditions to capture this image of the backlit spray from Enceladus’ icy plumes, visible faintly at the bottom of the moon.