Rings Around Saturn
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Cassini Spacecraft Marks 3 Years at Ringed World
on left,  Tethys, on the right, Enceladus Moons in the Night
Saturn's moons Tethys (left) and Enceladus (right) appear close together in this image. In reality, Tethys was more than 260,000 kilometers (162,000 miles) farther from the Cassini spacecraft. Enceladus is easy to identify by the brilliant plume of ice erupting from its south pole.

Sunlight makes the faint band called the E ring visible.

Tethys is 1,071 kilometers, (665 miles) across, and Enceladus is 505 kilometers (314 miles) across.

+ Full image and caption
 
  Jet Propulsion Laboratory
   California Institute of Technology
  + Cassini to Saturn