That is actually and interesting question, or at least interesting to me, because I am a huge space nerd. I don't mean to state the obvious, but if you're talking about a probe landing on the surface of Saturn, that isn't possible, because there is no surface. Saturn is a gas planet, like Jupiter, Uranus, and Neptune, which means they are actually huge balls of gas held together by their own gravity. It would be simply impossible to actually be on Saturn. However, you probably mean a probe or satellite getting in Saturn's orbit, that is a completely different story. In 1997, a probe called the Cassini-Huygens was launched from Earth. They were actually technically two different probes; Cassini carried the Huygens probe with it to Saturn, and is observing Saturn and its moons to this day. The Huygens probe was made to land on Saturn's moon Titan. In case you've never heard if it, Titan is a relatively large moon with an atmosphere greater than Earth's and was completely mysterious to scientists until 2004, which was a good enough reason to send a probe for them. I tend to go to far with these things, but long story short, Cassini-Huygens is the probe sent to Saturn.
space probes
Donkies
All of the eight planets have been visited or orbited by space probes.
Yes. Several space probes have been sent to explore Saturn.
All but Pluto, which is currently being visited.
The Viking space probes visited the planet Mars
The Voyager probes 1 and 2, both launched in 1977, visited Jupiter and Saturn before heading into deep space. Voyager 2 also visited Uranus and Neptune.
Pluto was the only planet not visited by a space mariner space probe.
No, I believe only probes have been sent out to Saturn. No, at least not directly. We have sent several robotic probes there without humans on-board however. No, because Saturn is a huge ball of swirling gases, you could no even stand on Saturn.
At current we have sent, or are sending, probes to all of the planets in our solar system. The probe Voyager has visited several planets, including Jupiter and Neptune, while Cassini is currently in orbit around Saturn.
NASA has sent several unmanned space probes to Saturn, but no manned missions.
none with humans although some probes have