Saturn
The sixth planet from the Sun, known for its stunning ring system composed of ice particles, rock debris, and dust. Saturn is the second-largest planet in the Solar System and is visible to the naked eye under dark skies.
Source: solarsystem.nasa.gov
APODs including "Saturn"
Saturn's Moon Tethys
19/05/2002
Tethys is one of the larger and closer moons of Saturn. It was visited by both Voyager spacecraft - Voyager 1 in November 1980 and by Voyager 2 in August 1981. Tethys is now known to be composed almost completely of water ice. Tethys shows a large impact crater that nearly circles the planet. That the impact that caused this crater did not disrupt the moon is taken as evidence that Tethys was not completely frozen in its past. Two smaller moons, Telesto and Calypso, orbit Saturn just ahead of and behind Tethys. Giovanni Cassini discovered Tethys in 1684. In 1997, NASA launched a spacecraft named Cassini to Saturn that will arrive in 2004.