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History UsefulNotes / TheMoonsOfSaturn

24th May '16 5:29:50 PM AnotherGuy
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Just like the Jovian moon, Enceladus is suspected to hide an ocean of liquid water underneath its surface, due to water vapour eruptions from Enceladus's many cryovolcanic vents. This was confirmed in September 2015 when it was determined that Enceladus's surface was shifting significantly relative to its interior, and have concluded its hypothetical subsurface ocean is global. ''Cassini'' flew through and found evidence of complex organic molecules--a '''possible''' marker for life. By virtue of being covered with ice, it is the most reflective object in the Solar System. Enceladus is smaller than [[UsefulNotes/TheMoonsOfJupiter Europa]] and has almost no surface gravity, which is why streams of water and steam bursting from cracks in the ice become long, impressive plumes.

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Just like the Jovian moon, Enceladus is suspected to hide an ocean of liquid water underneath its surface, due to water vapour eruptions from Enceladus's many cryovolcanic vents. This was confirmed in September 2015 when it was determined that Enceladus's surface was shifting significantly relative to its interior, and have concluded its hypothetical subsurface ocean is global. ''Cassini'' flew through and found evidence of complex organic molecules--a molecules. That, in addition to the discovery that the Enceladan water is ''salty'', makes it a '''possible''' marker for life. By virtue of being covered with ice, it is the most reflective object in the Solar System. Enceladus is smaller than [[UsefulNotes/TheMoonsOfJupiter Europa]] and has almost no surface gravity, which is why streams of water and steam bursting from cracks in the ice become long, impressive plumes.
6th Apr '16 1:41:31 PM RainbowPhoenix
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Like Mimas, Tethys also has a very big crater called Odysseus, which is 400 km in diameter (or approximately 2/5 of Tethys's). It is much shallower than Mimas's Herschel though. Two smaller, irregular, "Trojan" moons, Telesto and Calypso, also share the same orbit around {{UsefulNotes/Saturn}} as Tethys.

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Like Mimas, Tethys also has a very big crater called Odysseus, which is 400 km in diameter (or approximately 2/5 of Tethys's). It is much shallower than Mimas's Herschel though. Two smaller, irregular, "Trojan" moons, Telesto and Calypso, also share the same orbit around {{UsefulNotes/Saturn}} as Tethys.
Tethys. Also like Mimas, a thermal map of Tethys shows Packman.
18th Dec '15 3:47:47 AM pittsburghmuggle
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!![[UsefulNotes/TheMoonsOfJupiter Europa]] Too: Enceladus

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!![[UsefulNotes/TheMoonsOfJupiter Europa]] Too: Two: Enceladus
3rd Dec '15 4:32:50 PM ScorpiusOB1
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A small irregular moon (smaller than Mimas) shaped and colored like a sponge. Hyperion is notable for being the only moon in the solar system to have a "chaotic rotation", meaning it lacks poles (no, not the Central European kind) or a stable axis of rotation. This essentially makes Hyperion's orientation in space unpredictable. A very hyperactive moon, indeed.

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A small irregular moon (smaller than Mimas) shaped and colored like a sponge. Hyperion is notable for being the only moon in the solar system to have a "chaotic rotation", rotation"[[note]]At least until the ''New Horizons'' probe discovered the same happens with four of the five moons of Pluto[[/note]], meaning it lacks poles (no, not the Central European kind) or a stable axis of rotation. This essentially makes Hyperion's orientation in space unpredictable. A very hyperactive moon, indeed.
24th Sep '15 7:52:44 AM Kitch
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Just like the Jovian moon, Enceladus is suspected to hide an ocean of liquid water underneath its surface, due to water vapour eruptions from Enceladus's many cryovolcanic vents. This was confirmed in September 2015 when it was determined that Enceladus's surface was shifting significantly relative to its interior. ''Cassini'' flew through and found evidence of complex organic molecules--a '''possible''' marker for life. By virtue of being covered with ice, it is the most reflective object in the Solar System. Enceladus is smaller than [[UsefulNotes/TheMoonsOfJupiter Europa]] and has almost no surface gravity, which is why streams of water and steam bursting from cracks in the ice become long, impressive plumes.

to:

Just like the Jovian moon, Enceladus is suspected to hide an ocean of liquid water underneath its surface, due to water vapour eruptions from Enceladus's many cryovolcanic vents. This was confirmed in September 2015 when it was determined that Enceladus's surface was shifting significantly relative to its interior.interior, and have concluded its hypothetical subsurface ocean is global. ''Cassini'' flew through and found evidence of complex organic molecules--a '''possible''' marker for life. By virtue of being covered with ice, it is the most reflective object in the Solar System. Enceladus is smaller than [[UsefulNotes/TheMoonsOfJupiter Europa]] and has almost no surface gravity, which is why streams of water and steam bursting from cracks in the ice become long, impressive plumes.
18th Sep '15 8:56:52 AM RainbowPhoenix
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Just like the Jovian moon, Enceladus is suspected to hide an ocean of liquid water underneath its surface, due to water vapour eruptions from Enceladus's many cryovolcanic vents. ''Cassini'' flew through and found evidence of complex organic molecules--a '''possible''' marker for life. By virtue of being covered with ice, it is the most reflective object in the Solar System. Enceladus is smaller than [[UsefulNotes/TheMoonsOfJupiter Europa]] and has almost no surface gravity, which is why streams of water and steam bursting from cracks in the ice become long, impressive plumes.

to:

Just like the Jovian moon, Enceladus is suspected to hide an ocean of liquid water underneath its surface, due to water vapour eruptions from Enceladus's many cryovolcanic vents. This was confirmed in September 2015 when it was determined that Enceladus's surface was shifting significantly relative to its interior. ''Cassini'' flew through and found evidence of complex organic molecules--a '''possible''' marker for life. By virtue of being covered with ice, it is the most reflective object in the Solar System. Enceladus is smaller than [[UsefulNotes/TheMoonsOfJupiter Europa]] and has almost no surface gravity, which is why streams of water and steam bursting from cracks in the ice become long, impressive plumes.
5th Sep '15 4:40:24 PM HeraldAlberich
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Small moons that orbit near (or sometimes between) {{UsefulNotes/Saturn}}'s various rings. They're also known as "shepherd moons" because they keep the particles that make up the rings in line. These moons are only a few kilometers in diameter, as this close to {{UsefulNotes/Saturn}} (i.e. within the Roche Limit) anything larger would get slowly torn apart. Voyager and Cassini have taken pictures of the various kinks, twists and waves inflicted on the rings by their gravitational wakes.

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Small moons that orbit near (or sometimes between) {{UsefulNotes/Saturn}}'s various rings. They're also known as "shepherd moons" because they keep the particles that make up the rings in line. These moons are only a few kilometers in diameter, as this close to {{UsefulNotes/Saturn}} Saturn (i.e. within the Roche Limit) anything larger would get slowly torn apart. Voyager ''Voyager'' and Cassini ''Cassini'' have taken pictures of the various kinks, twists and waves inflicted on the rings by their gravitational wakes.



A small moon that got hit by a big rock at some point and just barely avoiding breaking up. This had led the moon to resemble [[StarWars the Death Star]], with a 130-km crater named Herschel that almost exactly corresponds to the fictional space station's laser dish.[[note]]The Voyager probes discovered the crater three years after the original ''Star Wars'' was released, so whatever the faults of GeorgeLucas are, plagiarism isn't one of them. At least, [[Film/TheHiddenFortress not this time]].[[/note]] Mimas is also slightly egg-shaped, with the long end pointed toward {{UsefulNotes/Saturn}}. Bizarrely, a temperature map produced by NASA showed that the warmer regions of the moon [[http://www.sciencedaily.com/releases/2010/03/100329153533.htm looks like Pacman]].

Its surface features (apart from Herschel) are named after people and places from the legend of KingArthur (Avalon Chasma, the crater Galahad, etc.)

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A small moon that got hit by a big rock at some point and just barely avoiding breaking up. This had led the moon to resemble [[StarWars [[Franchise/StarWars the Death Star]], with a 130-km crater named Herschel that almost exactly corresponds to the fictional space station's laser dish.dish. [[note]]The Voyager ''Voyager'' probes discovered the crater three years after the original ''Star Wars'' was released, so whatever the faults of GeorgeLucas Creator/GeorgeLucas are, plagiarism isn't one of them. At least, [[Film/TheHiddenFortress not this time]].[[/note]] Mimas is also slightly egg-shaped, with the long end pointed toward {{UsefulNotes/Saturn}}. Bizarrely, a temperature map produced by NASA showed that the warmer regions of the moon [[http://www.sciencedaily.com/releases/2010/03/100329153533.htm looks like Pacman]].

Its surface features (apart from Herschel) are named after people and places from the legend of KingArthur Myth/KingArthur (Avalon Chasma, the crater Galahad, etc.)



Just like the Jovian moon, Enceladus is suspected to hide an ocean of liquid water underneath its surface, due to water vapour eruptions from Enceladus' many cryovolcanic vents. Cassini flew through and found evidence of complex organic molecules - a '''possible''' marker for life. By virtue of being covered with ice it is the most reflective object in the Solar System. Enceladus is smaller than [[UsefulNotes/TheMoonsOfJupiter Europa]] and has almost none surface gravity, that's why streams of water and steam bursting from cracks in the ice become long, impressive plumes.

to:

Just like the Jovian moon, Enceladus is suspected to hide an ocean of liquid water underneath its surface, due to water vapour eruptions from Enceladus' Enceladus's many cryovolcanic vents. Cassini ''Cassini'' flew through and found evidence of complex organic molecules - a molecules--a '''possible''' marker for life. By virtue of being covered with ice ice, it is the most reflective object in the Solar System. Enceladus is smaller than [[UsefulNotes/TheMoonsOfJupiter Europa]] and has almost none no surface gravity, that's which is why streams of water and steam bursting from cracks in the ice become long, impressive plumes.



Like Mimas, Tethys also has a very big crater called Odysseus, which is 400 km in diameter (or approximately 2/5 of Tethys'). It is much shallower than Mimas' Herschel though. Two smaller, irregular, "Trojan" moons, Telesto and Calypso, also share the same orbit around {{UsefulNotes/Saturn}} as Tethys.

to:

Like Mimas, Tethys also has a very big crater called Odysseus, which is 400 km in diameter (or approximately 2/5 of Tethys'). Tethys's). It is much shallower than Mimas' Mimas's Herschel though. Two smaller, irregular, "Trojan" moons, Telesto and Calypso, also share the same orbit around {{UsefulNotes/Saturn}} as Tethys.



Another mid-size moon with surface features (cracks, troughs, smooth plains, rises and depressions) which seems to indicate past or present tectonic or volcanic activities. Pictures from the Voyager probes showed wispy white lines that were thought to be frost; Cassini proved them to be cliffs hundreds of meters high. Like Tethys, it also has orbit-mates, or Trojan Moons - Helene and Polydeuces are irregular lumps of rock.

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Another mid-size moon with surface features (cracks, troughs, smooth plains, rises and depressions) which seems to indicate past or present tectonic or volcanic activities. Pictures from the Voyager ''Voyager'' probes showed wispy white lines that were thought to be frost; Cassini proved them to be cliffs hundreds of meters high. Like Tethys, it also has orbit-mates, or Trojan Moons - Helene Moons--Helene and Polydeuces are irregular lumps of rock.



The second biggest moon in the Solar System (after [[UsefulNotes/TheMoonsOfJupiter Jupiter's Ganymede]]) [[note]]Before the era of space probes it was believed to be the biggest, since its high reflectivity gave a false impression of its size[[/note]] and comprising 96% of all mass in orbit around {{UsefulNotes/Saturn}}. Despite its size (larger than {{UsefulNotes/Mercury}}), it only has one-seventh the {{UsefulNotes/Earth}}'s gravity and its bulk density is less than twice that of water - there's a lot of ice and rock mixed in.

It's covered in a thick hydrocarbon haze[[note]]Here on Earth, we call it "smog"[[/note]], making it only moon to have a full-blown atmosphere. It's also the only known celestial body in the Solar System, apart from {{UsefulNotes/Earth}}, to have both a solid surface and basins of liquid on it. Unlike {{UsefulNotes/Earth}}'s oceans, the liquids in question are light hydrocarbons, mostly methane and ethane -- basically the same stuff that the atmosphere is made of[[note]]If oxygen comes into contact with the air on Titan, you won't have time to say, "Oh, the humanity!" as it ignites violently.[[/note]]. As a bonus, Titan's equatorial regions are abundant in [[https://en.wikipedia.org/wiki/Titan_%28moon%29#Dark_terrain massive dunefields]] whose grains are thought to be made of organic compounds too.

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The second biggest moon in the UsefulNotes/{{the Solar System System}} (after [[UsefulNotes/TheMoonsOfJupiter Jupiter's Ganymede]]) [[note]]Before the era of space probes it was believed to be the biggest, since its high reflectivity gave a false impression of its size[[/note]] and comprising 96% of all mass in orbit around {{UsefulNotes/Saturn}}. Despite its size (larger than {{UsefulNotes/Mercury}}), it only has one-seventh the {{UsefulNotes/Earth}}'s Earth's gravity and its bulk density is less than twice that of water - there's water--there's a lot of ice and rock mixed in.

It's covered in a thick hydrocarbon haze[[note]]Here on Earth, we call it "smog"[[/note]], making it only moon to have a full-blown atmosphere. It's also the only known celestial body in the Solar System, apart from {{UsefulNotes/Earth}}, Earth, to have both a solid surface and basins of liquid on it. Unlike {{UsefulNotes/Earth}}'s Earth's oceans, the liquids in question are light hydrocarbons, mostly methane and ethane -- basically ethane--basically the same stuff that the atmosphere is made of[[note]]If of. [[note]]If oxygen comes into contact with the air on Titan, you won't have time to say, "Oh, the humanity!" as it ignites violently.[[/note]]. [[/note]] As a bonus, Titan's equatorial regions are abundant in [[https://en.wikipedia.org/wiki/Titan_%28moon%29#Dark_terrain massive dunefields]] whose grains are thought to be made of organic compounds too.



Cassini carried [[DropShip an atmospheric entry probe]], Huygens (built and managed by the European Space Agency and named after the discoverer of this moon), along on its trip to the system. On its way there [[OhCrap the mission control team realized the Doppler shift caused by the differing velocities of Cassini and Huygens would cause its radio signals to become unreadable]]. They changed Huygens' approach vector to reduce the shift, and the data and pictures were successfully transmitted as the probe parachuted in over Xanadu Terra. Unfortunately, half of them were never picked up because a programming error prevented Cassini from listening to one of the two data channels; nevertheless the pictures revealed a strangely {{UsefulNotes/Earth}}-like landscape of what looked like drainage channels, islands and seas (all produced by hydrocarbons). Pictures from the surface showed a gloomy, orange-tinted plain covered with "ice pebbles". The Huygens probe carried a the first ever microphone to record audio on a world other than Earth, and was the first probe to transmit audio recordings from another world in our Solar System [[note]]the Phoenix Polar Lander on Mars carried a microphone but it was never switched on. Before that, the Mars Polar Lander was fitted with a microphone but that probe failed to land[[/note]]

The lakes, craters and drainage channels on Titan are named after lakes and rivers from {{UsefulNotes/Earth}} (e.g. Ontario Lacus), while other features are named after sacred and enchanted places on Earth and deities of peace, happiness, beauty and wisdom (Shangri-La, Ganesa Macula, etc.). Titanian ''planitia'' (low plains) are named after planets from Frank Herbert's ''Franchise/{{Dune}}'' (e.g. Arrakis Planitia, Caladan Planitia, etc.), and its mountains' names come from Franchise/TolkiensLegendarium (e.g. Erebor Montes, Doom Mons, etc.).

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Cassini ''Cassini'' carried [[DropShip an atmospheric entry probe]], Huygens ''Huygens'' (built and managed by the [[UsefulNotes/{{ESA}} European Space Agency Agency]] and named after the discoverer of this moon), along on its trip to the system. On its way there [[OhCrap the mission control team realized the Doppler shift caused by the differing velocities of Cassini and Huygens would cause its radio signals to become unreadable]]. They changed Huygens' ''Huygens''' approach vector to reduce the shift, and the data and pictures were successfully transmitted as the probe parachuted in over Xanadu Terra. Unfortunately, half of them were never picked up because a programming error prevented Cassini ''Cassini'' from listening to one of the two data channels; nevertheless the pictures revealed a strangely {{UsefulNotes/Earth}}-like Earth-like landscape of what looked like drainage channels, islands and seas (all produced by hydrocarbons). Pictures from the surface showed a gloomy, orange-tinted plain covered with "ice pebbles". The Huygens ''Huygens'' probe carried a the first ever microphone to record audio on a world other than Earth, and was the first probe to transmit audio recordings from another world in our Solar System System. [[note]]the Phoenix ''Phoenix'' Polar Lander on Mars UsefulNotes/{{Mars}} carried a microphone but it was never switched on. Before that, the Mars Polar Lander was fitted with a microphone but that probe failed to land[[/note]]

land.[[/note]]

The lakes, craters and drainage channels on Titan are named after lakes and rivers from {{UsefulNotes/Earth}} Earth (e.g. Ontario Lacus), while other features are named after sacred and enchanted places on Earth and deities of peace, happiness, beauty and wisdom (Shangri-La, Ganesa Macula, etc.). Titanian ''planitia'' (low plains) are named after planets from Frank Herbert's Creator/FrankHerbert's ''Franchise/{{Dune}}'' (e.g. Arrakis Planitia, Caladan Planitia, etc.), and its mountains' names come from Franchise/TolkiensLegendarium (e.g. Erebor Montes, Doom Mons, etc.).



The setting of the book ''2001: ASpaceOdyssey''.

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The setting of the book ''2001: ASpaceOdyssey''.
''[[Literature/TheSpaceOdysseySeries 2001: A Space Odyssey]]''.



Phoebe was the first moon to be discovered photographically (in 1898) and was the outermost of {{UsefulNotes/Saturn}}'s known moons until more were discovered in the 2000s (it's now considered a member of the "Norse group" of irregular satellites). Its main claim to fame was its retrograde orbit and very low albedo, and it was long thought to be a captured asteroid. Recent evidence points to it being a captured "centaur" (a Kuiper belt object pulled in from its normal stomping grounds out by Pluto by the permutations of the gas giants).

Its surface features are named after people and places from the myth of Jason and the Argonauts (e.g. the crater Hylas).

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Phoebe was the first moon to be discovered photographically (in 1898) and was the outermost of {{UsefulNotes/Saturn}}'s known moons until more were discovered in the 2000s (it's now considered a member of the "Norse group" of irregular satellites). Its main claim to fame was is its retrograde orbit and very low albedo, and it was long thought to be a captured asteroid. Recent evidence points to it being a captured "centaur" (a Kuiper belt object pulled in from its normal stomping grounds out by Pluto by the permutations of the gas giants).

Its surface features are named after people and places from the myth Myth/{{Classical myth|ology}} of Jason and the Argonauts (e.g. the crater Hylas).



The fictional outermost moon in ArthurCClarke's ''Imperial Earth''. It has almost no spin and is far from the Sun's electromagnetic field, making it ideal for the CETI radio 'Argus'. Though it was referred to as the 22nd moon, [[ScienceMarchesOn many more satellites were discovered since the book was written]].

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The fictional outermost moon in ArthurCClarke's Creator/ArthurCClarke's ''Imperial Earth''. It has almost no spin and is far from the Sun's electromagnetic field, making it ideal for the CETI radio 'Argus'. Though it was referred to as the 22nd moon, [[ScienceMarchesOn many more satellites were discovered since the book was written]].
16th Aug '15 9:10:22 AM StevieC
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Cassini carried [[DropShip an atmospheric entry probe]], Huygens (built and managed by the European Space Agency and named after the discoverer of this moon), along on its trip to the system. On its way there [[OhCrap the mission control team realized the Doppler shift caused by the differing velocities of Cassini and Huygens would cause its radio signals to become unreadable]]. They changed Huygens' approach vector to reduce the shift, and the data and pictures were successfully transmitted as the probe parachuted in over Xanadu Terra. Unfortunately, half of them were never picked up because a programming error prevented Cassini from listening to one of the two data channels; nevertheless the pictures revealed a strangely {{UsefulNotes/Earth}}-like landscape of what looked like drainage channels, islands and seas (all produced by hydrocarbons). Pictures from the surface showed a gloomy, orange-tinted plain covered with "ice pebbles".

to:

Cassini carried [[DropShip an atmospheric entry probe]], Huygens (built and managed by the European Space Agency and named after the discoverer of this moon), along on its trip to the system. On its way there [[OhCrap the mission control team realized the Doppler shift caused by the differing velocities of Cassini and Huygens would cause its radio signals to become unreadable]]. They changed Huygens' approach vector to reduce the shift, and the data and pictures were successfully transmitted as the probe parachuted in over Xanadu Terra. Unfortunately, half of them were never picked up because a programming error prevented Cassini from listening to one of the two data channels; nevertheless the pictures revealed a strangely {{UsefulNotes/Earth}}-like landscape of what looked like drainage channels, islands and seas (all produced by hydrocarbons). Pictures from the surface showed a gloomy, orange-tinted plain covered with "ice pebbles".
pebbles". The Huygens probe carried a the first ever microphone to record audio on a world other than Earth, and was the first probe to transmit audio recordings from another world in our Solar System [[note]]the Phoenix Polar Lander on Mars carried a microphone but it was never switched on. Before that, the Mars Polar Lander was fitted with a microphone but that probe failed to land[[/note]]
8th Jul '15 3:39:47 PM ScorpiusOB1
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It's covered in a thick hydrocarbon haze[[note]]Here on Earth, we call it "smog"[[/note]], making it only moon to have a full-blown atmosphere. It's also the only known celestial body in the Solar System, apart from {{UsefulNotes/Earth}}, to have both a solid surface and basins of liquid on it. Unlike {{UsefulNotes/Earth}}'s oceans, the liquids in question are light hydrocarbons, mostly methane and ethane -- basically the same stuff that the atmosphere is made of[[note]]If oxygen comes into contact with the air on Titan, you won't have time to say, "Oh, the humanity!" as it ignites violently.[[/note]]. As a bonus, Titan's equatorial regions is covered by [[https://en.wikipedia.org/wiki/Titan_%28moon%29#Dark_terrain massive dunefields]] whose grains are thought to be made of organic compounds too.

to:

It's covered in a thick hydrocarbon haze[[note]]Here on Earth, we call it "smog"[[/note]], making it only moon to have a full-blown atmosphere. It's also the only known celestial body in the Solar System, apart from {{UsefulNotes/Earth}}, to have both a solid surface and basins of liquid on it. Unlike {{UsefulNotes/Earth}}'s oceans, the liquids in question are light hydrocarbons, mostly methane and ethane -- basically the same stuff that the atmosphere is made of[[note]]If oxygen comes into contact with the air on Titan, you won't have time to say, "Oh, the humanity!" as it ignites violently.[[/note]]. As a bonus, Titan's equatorial regions is covered by are abundant in [[https://en.wikipedia.org/wiki/Titan_%28moon%29#Dark_terrain massive dunefields]] whose grains are thought to be made of organic compounds too.
8th Jul '15 3:38:33 PM ScorpiusOB1
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It's covered in a thick hydrocarbon haze[[note]]Here on Earth, we call it "smog"[[/note]], making it only moon to have a full-blown atmosphere. It's also the only known celestial body in the Solar System, apart from {{UsefulNotes/Earth}}, to have both a solid surface and basins of liquid on it. Unlike {{UsefulNotes/Earth}}'s oceans, the liquids in question are light hydrocarbons, mostly methane and ethane -- basically the same stuff that the atmosphere is made of.[[note]]If oxygen comes into contact with the air on Titan, you won't have time to say, "Oh, the humanity!" as it ignites violently.[[/note]]

to:

It's covered in a thick hydrocarbon haze[[note]]Here on Earth, we call it "smog"[[/note]], making it only moon to have a full-blown atmosphere. It's also the only known celestial body in the Solar System, apart from {{UsefulNotes/Earth}}, to have both a solid surface and basins of liquid on it. Unlike {{UsefulNotes/Earth}}'s oceans, the liquids in question are light hydrocarbons, mostly methane and ethane -- basically the same stuff that the atmosphere is made of.[[note]]If of[[note]]If oxygen comes into contact with the air on Titan, you won't have time to say, "Oh, the humanity!" as it ignites violently.[[/note]]
[[/note]]. As a bonus, Titan's equatorial regions is covered by [[https://en.wikipedia.org/wiki/Titan_%28moon%29#Dark_terrain massive dunefields]] whose grains are thought to be made of organic compounds too.
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