NASA's Cassini spacecraft has sent back images of rugged landscape of Saturn's fracture-faced moon Dione from its latest flyby.
On Aug. 17, the spacecraft will make its final flyby of Dione, diving to within 295 miles (474 kilometers) of the surface. The final Dione encounter will be Cassini's second-closest brush with the icy moon.
A December 2011 flyby saw the spacecraft reach an altitude of just 60 miles (100 kilometers) above Dione.
