Only 4 spacecraft have ever made it out to Saturn. Our most comprehensive look at the planet came from NASA and the European Space Agency's Cassini-Huygens mission, which spent 13 years exploring Saturn and its moons.
By studying Saturn we learn about how our solar system formed and evolved, and how countless others in the galaxy and beyond do as well. Its complex, planet-like moons make Saturn a solar system unto itself.
Saturn's largest moon, Titan, is both the only other place in the solar system with liquid on its surface and the only moon with a thick atmosphere, making it a tantalizing destination to search for life.