Sunlight illuminates a bright crescent on Saturn's moon Enceladus while Saturnshine dimly lights more of the moon.

This view looks toward the Saturn-facing side of Enceladus (504 kilometers, or 313 miles across). North on Enceladus is up and rotated 30 degrees to the left. The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 17, 2009. The view was obtained at a distance of approximately 1.5 million kilometers (932,000 miles) from Enceladus and at a Sun-Enceladus-spacecraft, or phase, angle of 117 degrees. Image scale is 9 kilometers (6 miles) per pixel. (Credit: NASA/JPL/Space Science Institute)