No CGI Required

The above image was taken by the Cassini probe as it orbits Saturn, and I found this particular image here. The large moon in the background is Saturn's moon Titan, and the bright one that makes it resemble the Death Star is Dione. The bright dot that looks like it's at the outer edge of the rings is Pandora, and the small white speck in the gap on the left hand side is Pan. Rumors that George Lucas will release an "improved" version of this and other Cassini pictures are, so far, unfounded.

You can read more information about the Cassini probe and see more pictures here. Cassini is the orbital component of the Cassini-Huygens spacecraft that was launched jointly by NASA and the European Space Administration (ESA) to study Saturn; the Huygens probe focuses on studying Titan itself. The spacecraft was launched in 1997, back about the time someone tried to lie to us even though we all knew that Han shot first.