| Solar System Scratchpad|
Satellites of SaturnEdit
- See Saturnian System for All Satellites
- Mimas - Innermost large moon of Saturn. Has a distinct large crater that gives the moon the nickname the "Deathstar Moon".
- Enceladus - Second large moon of Saturn. The brightest and smoothest known body in the solar system. Has active ice geysers that feed Saturn's rings and enter its atmosphere (making it the only Moon to affect its parent's composition) and neighboring moons.
- Tethys - Large moon of Saturn. May have had an ancient subsurface ocean which froze out when interaction with Dione subsided. Ithaca Chasma may have resulted with this freeze.
- Dione - Large moon of Saturn. Interacts with Enceladus today (flexes it to maintain liquid ocean) and may have helped Tethys in the past maintain a liquid ocean.
- Rhea - Second largest moon of Saturn. A cratered icy world almost 1000 miles across. Has a tenuous oxygen-rich atmosphere created by charged particles from Saturn's magnetic field striking and splitting apart water molecules.
- Titan - Largest moon of Saturn and the only known moon to have a thick atmosphere. Only body known to have bodies of liquids on its surface other than the Earth, which are composed of hydrocarbons. Landed on by the Huygens probe and mapped by the Cassini orbiter.
- Hyperion - Large irregular moon of Saturn. Sponge shaped. Spins on two axises. First irregular satellite discovered. Extremely low density and porous, may host a network of caverns within.
- Iapetus - Outermost large moon of Saturn, only spherical one in an eccentric, inclined orbit. Has two different "faces", one very bright and the other very dark. Has mountain range across its equator which significantly distorts its spherical shape.
- Phoebe - Outermost relatively large moon of Saturn. A dark large irregular moon, thought to be a planetesimal from the Kuiper Belt. It was likely spherical in its past, is about the same density as Pluto, and has a denser core. Its composition and density are more similar to KBOs than objects of the Saturnian system. Has water ice on its surface and probably liquid water in its interior at some point in its history. First satellite discovered using photography. First moon targeted by Cassini. Source of dark hemisphere of Iapetus. Smaller fragments land on Hyperion and Titan.
Saturn In The NewsEdit
Cassini in the NewsEdit
Storms Drive Winds (May 2007)Edit
Length of Saturn's Day Shorter Than Believed (Sep 2009)Edit
Saturn at Equinox (Aug 2009)Edit
Object Pierces Ring During Equinox (Aug 2009)Edit
Lightning Superbolts Imaged (Jun 2010)Edit
White Storm Imaged by Cassini (Dec 2011)Edit
Saturn's Position Charted By Cassini (Jan 2011)Edit
- See Jupiter
Radio Signals Vary by Hemisphere (Mar 2011)Edit
Ripples in Rings Due to Past Collisions (Mar 2011)Edit
- See also Saturn and Comet Shoemaker-Levy 9
Enceladus Causes Aurora's on Saturn (Apr 2011)Edit
Giant Storm Spreads Across Planet (May 2011)Edit
- Viewed with both Casinia and Europes VLT array, rearranges Saturn's cloud decks nearby, first infrared observations of a giant storm
Cassini Has Minor Short Circuit (Jun 2011)Edit
New Great White Spot Storm Erupts (Jul 2011)Edit
Enceladus Source of Water in Saturn's Upper Atmosphere (Jul 2011)Edit
Cassini Photography in the NewsEdit
Dione Above Saturn's Rings Over Rhea (Feb 2011)Edit
Video of Cassini Flyby in Outside In Imax Project (Mar 2011)Edit
Saturn, Titan, Enceladus, and Pandora Image (Mar 2011)Edit
Black Saturn and Three Moons (Jul 2011)Edit
Titan Saturn System Mission in the NewsEdit
- Initially known as "Tandem" in Europe
- Titan orbiter would explore Saturn system prior to entering Titan orbiter
About to Choose Between Saturn and Jupiter Missions (Jan 2009)Edit
Europa Mission Chosen (Feb 2009)Edit
Earth Based Observations in the NewsEdit
Great White Spot of 1990Edit
White Spot in 1996Edit
White Spot in 2006Edit
First Image From Orbit PhotoessayEdit
Book on Alien Weather (May 2011)Edit