The sixth planet of Earth's solar system, a ringed gas giant whose neighbourhood holds the Starfleet Academy flight range and whose largest moon is Titan.
Saturn is referred to several times across Star Trek. In the original series episode Tomorrow Is Yesterday, Captain John Christopher has to be returned to 1969 because his future son, Shaun Geoffrey Christopher, will command the first successful Earth-Saturn probe.
In The Next Generation the Borg cube passes the planet on its way to Earth in The Best of Both Worlds. The First Duty places the Academy flight range close by, and it is there that Nova Squadron's forbidden Kolvoord Starburst kills Cadet Joshua Albert during a slingshot run around Titan.
The 2009 film Star Trek uses the planet for a memorable entrance. Chekov proposes dropping out of warp behind Titan so that Saturn's rings and magnetic field hide the Enterprise from the Narada.