Saturn has always been the most spectacular planet in the solar
system, and it looks like every time you look you find a new
satellite orbiting it; I think the total number is up to 47
already. Actually, it's hard to give a precise number, and the
problem is similar to that of deciding whether Pluto is a planet
or not: technically, all of the small chunks of ice and rock
that orbit Saturn, both independently and as part of its rings,
are satellites, and there's not a clear distinction between
"small moon" and "large rock". In any case, the Cassini Imaging
Lab has released a series of beautiful animations depicting the
movement of Saturn and some of its moons. Definitely worth
taking a look. The third one in particular, "Staying with
Epimetheus", shows quite clearly the amazing range of sizes the
Saturnian moons come in. And, admit it: you had no idea Saturn
had a moon called Epimetheus, did you? (on an unrelated note,
Pluto's new moons very officially named this week: they're Nix
and Hydra, joining the alread