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In this image from NASA's Cassini spacecraft, the spiral structures in the D ring are on display, although it is so thin as to be barely noticeable compared to the rest of the ring system.
In this image from NASA's Cassini spacecraft, the spiral structures in the D ring are on display, although it is so thin as to be barely noticeable compared to the rest of the ring system.

Spirals in the D Ring

In this image from NASA's Cassini spacecraft, the spiral structures in the D ring are on display, although it is so thin as to be barely noticeable compared to the rest of the ring system.

Target: S Rings
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18321
Added: 2015-06-29

Views: 486

Spirals in the D Ring

In this image from NASA's Cassini spacecraft, the spiral structures in the D ring are on display, although it is so thin as to be barely noticeable compared to the rest of the ring system.

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This image from NASA's Cassini spacecraft shows three moons -- Titan, Mimas, and Rhea. Titan, the largest moon shown here, appear fuzzy because we only see its cloud layers.
This image from NASA's Cassini spacecraft shows three moons -- Titan, Mimas, and Rhea. Titan, the largest moon shown here, appear fuzzy because we only see its cloud layers.

Triple Crescents

This image from NASA's Cassini spacecraft shows three moons -- Titan, Mimas, and Rhea. Titan, the largest moon shown here, appear fuzzy because we only see its cloud layers.

Target: Titan
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18322
Added: 2015-06-22

Views: 708

Triple Crescents

This image from NASA's Cassini spacecraft shows three moons -- Titan, Mimas, and Rhea. Titan, the largest moon shown here, appear fuzzy because we only see its cloud layers.

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NASA's Cassini imaging scientists processed this view of Saturn's moon Dione, taken during a close flyby on June 16, 2015. This was Cassini's fourth targeted flyby of Dione.
NASA's Cassini imaging scientists processed this view of Saturn's moon Dione, taken during a close flyby on June 16, 2015. This was Cassini's fourth targeted flyby of Dione.

In the Company of Dione

NASA's Cassini imaging scientists processed this view of Saturn's moon Dione, taken during a close flyby on June 16, 2015. This was Cassini's fourth targeted flyby of Dione.

Target: Dione
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Wide Angle
ID#: PIA17196
Added: 2015-06-18

Views: 3662

In the Company of Dione

NASA's Cassini imaging scientists processed this view of Saturn's moon Dione, taken during a close flyby on June 16, 2015. This was Cassini's fourth targeted flyby of Dione.

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NASA's Cassini imaging scientists processed this view of Saturn's moon Dione, taken during a close flyby on June 16, 2015. This was Cassini's fourth targeted flyby of Dione.
NASA's Cassini imaging scientists processed this view of Saturn's moon Dione, taken during a close flyby on June 16, 2015. This was Cassini's fourth targeted flyby of Dione.

Dione's Craggy Surface

NASA's Cassini imaging scientists processed this view of Saturn's moon Dione, taken during a close flyby on June 16, 2015. This was Cassini's fourth targeted flyby of Dione.

Target: Dione
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA17195
Added: 2015-06-18

Views: 3443

Dione's Craggy Surface

NASA's Cassini imaging scientists processed this view of Saturn's moon Dione, taken during a close flyby on June 16, 2015. This was Cassini's fourth targeted flyby of Dione.

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In this image from NASA's Cassini spacecraft, two large craters on Tethys, near the line where day fades to night, almost resemble two giant eyes observing Saturn. Tethys is significantly closer to the camera, while the planet is in the background.
In this image from NASA's Cassini spacecraft, two large craters on Tethys, near the line where day fades to night, almost resemble two giant eyes observing Saturn. Tethys is significantly closer to the camera, while the planet is in the background.

Tethys 'Eyes' Saturn

In this image from NASA's Cassini spacecraft, two large craters on Tethys, near the line where day fades to night, almost resemble two giant eyes observing Saturn. Tethys is significantly closer to the camera, while the planet is in the background.

Target: Tethys
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Wide Angle
ID#: PIA18318
Added: 2015-06-15

Views: 546

Tethys 'Eyes' Saturn

In this image from NASA's Cassini spacecraft, two large craters on Tethys, near the line where day fades to night, almost resemble two giant eyes observing Saturn. Tethys is significantly closer to the camera, while the planet is in the background.

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Like most moons in the solar system, Tethys is covered by impact craters. Some craters bear witness to incredibly violent events, such as the crater Odysseus (seen here at the right of this image from NASA's Cassini spacecraft).
Like most moons in the solar system, Tethys is covered by impact craters. Some craters bear witness to incredibly violent events, such as the crater Odysseus (seen here at the right of this image from NASA's Cassini spacecraft).

Tethys the Target

Like most moons in the solar system, Tethys is covered by impact craters. Some craters bear witness to incredibly violent events, such as the crater Odysseus (seen here at the right of this image from NASA's Cassini spacecraft).

Target: Tethys
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18317
Added: 2015-06-08

Views: 434

Tethys the Target

Like most moons in the solar system, Tethys is covered by impact craters. Some craters bear witness to incredibly violent events, such as the crater Odysseus (seen here at the right of this image from NASA's Cassini spacecraft).

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NASA's Cassini imaging scientists processed this view of Saturn's moon Hyperion, taken during a close flyby on May 31, 2015. This flyby marks the mission's final close approach to Saturn's largest irregularly shaped moon.
NASA's Cassini imaging scientists processed this view of Saturn's moon Hyperion, taken during a close flyby on May 31, 2015. This flyby marks the mission's final close approach to Saturn's largest irregularly shaped moon.

Spongy Surface

NASA's Cassini imaging scientists processed this view of Saturn's moon Hyperion, taken during a close flyby on May 31, 2015. This flyby marks the mission's final close approach to Saturn's largest irregularly shaped moon.

Target: Hyperion
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA17194
Added: 2015-06-02

Views: 3375

Spongy Surface

NASA's Cassini imaging scientists processed this view of Saturn's moon Hyperion, taken during a close flyby on May 31, 2015. This flyby marks the mission's final close approach to Saturn's largest irregularly shaped moon.

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NASA's Cassini imaging scientists processed this view of Saturn's moon Hyperion, taken during a close flyby on May 31, 2015. This flyby marks the mission's final close approach to Saturn's largest irregularly shaped moon.
NASA's Cassini imaging scientists processed this view of Saturn's moon Hyperion, taken during a close flyby on May 31, 2015. This flyby marks the mission's final close approach to Saturn's largest irregularly shaped moon.

Farewell to Hyperion

NASA's Cassini imaging scientists processed this view of Saturn's moon Hyperion, taken during a close flyby on May 31, 2015. This flyby marks the mission's final close approach to Saturn's largest irregularly shaped moon.

Target: Hyperion
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA17193
Added: 2015-06-02

Views: 2451

Farewell to Hyperion

NASA's Cassini imaging scientists processed this view of Saturn's moon Hyperion, taken during a close flyby on May 31, 2015. This flyby marks the mission's final close approach to Saturn's largest irregularly shaped moon.

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NASA's Cassini spacecraft captured this image when Dione was closer to its camera, making the moon appear much bigger than her larger sister moon, Rhea.
NASA's Cassini spacecraft captured this image when Dione was closer to its camera, making the moon appear much bigger than her larger sister moon, Rhea.

Dione Dwarfing Rhea

NASA's Cassini spacecraft captured this image when Dione was closer to its camera, making the moon appear much bigger than her larger sister moon, Rhea.

Target: Dione
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18319
Added: 2015-06-01

Views: 1141

Dione Dwarfing Rhea

NASA's Cassini spacecraft captured this image when Dione was closer to its camera, making the moon appear much bigger than her larger sister moon, Rhea.

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Rhea's horizon is slightly irregular and battered by craters, so thoughts inevitably turn towards the forces that shape these icy worlds. This image is from NASA's Cassini spacecraft.
Rhea's horizon is slightly irregular and battered by craters, so thoughts inevitably turn towards the forces that shape these icy worlds. This image is from NASA's Cassini spacecraft.

Rhea's Horizon

Rhea's horizon is slightly irregular and battered by craters, so thoughts inevitably turn towards the forces that shape these icy worlds. This image is from NASA's Cassini spacecraft.

Target: Rhea
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18316
Added: 2015-05-25

Views: 423

Rhea's Horizon

Rhea's horizon is slightly irregular and battered by craters, so thoughts inevitably turn towards the forces that shape these icy worlds. This image is from NASA's Cassini spacecraft.

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Although Janus should be the least lonely of all moons -- sharing its orbit with Epimetheus -- it still spends most of its orbit far from other moons, alone in the vastness of space in this image from NASA's Cassini spacecraft.
Although Janus should be the least lonely of all moons -- sharing its orbit with Epimetheus -- it still spends most of its orbit far from other moons, alone in the vastness of space in this image from NASA's Cassini spacecraft.

Janus Stands Alone

Although Janus should be the least lonely of all moons -- sharing its orbit with Epimetheus -- it still spends most of its orbit far from other moons, alone in the vastness of space in this image from NASA's Cassini spacecraft.

Target: Janus
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18315
Added: 2015-05-18

Views: 265

Janus Stands Alone

Although Janus should be the least lonely of all moons -- sharing its orbit with Epimetheus -- it still spends most of its orbit far from other moons, alone in the vastness of space in this image from NASA's Cassini spacecraft.

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From a distance Saturn seems to exude an aura of serenity and peace in this image from NASA's Cassini spacecraft. In spite of this appearance, Saturn is an active and dynamic world. Mimas is seen to the upper-right of Saturn.
From a distance Saturn seems to exude an aura of serenity and peace in this image from NASA's Cassini spacecraft. In spite of this appearance, Saturn is an active and dynamic world. Mimas is seen to the upper-right of Saturn.

Serene Saturn

From a distance Saturn seems to exude an aura of serenity and peace in this image from NASA's Cassini spacecraft. In spite of this appearance, Saturn is an active and dynamic world. Mimas is seen to the upper-right of Saturn.

Target: Saturn
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Wide Angle
ID#: PIA18314
Added: 2015-05-11

Views: 1679

Serene Saturn

From a distance Saturn seems to exude an aura of serenity and peace in this image from NASA's Cassini spacecraft. In spite of this appearance, Saturn is an active and dynamic world. Mimas is seen to the upper-right of Saturn.

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Phantom jets in simulated images produced by the scientists line up nicely with some of the features in real images from NASA's Cassini spacecraft that appear to be discrete columns of spray.
Phantom jets in simulated images produced by the scientists line up nicely with some of the features in real images from NASA's Cassini spacecraft that appear to be discrete columns of spray.

Enceladus Curtains: Comparing Data and Simulation

Phantom jets in simulated images produced by the scientists line up nicely with some of the features in real images from NASA's Cassini spacecraft that appear to be discrete columns of spray.

Target: Enceladus
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem
ID#: PIA19061
Added: 2015-05-06

Views: 928

Enceladus Curtains: Comparing Data and Simulation

Phantom jets in simulated images produced by the scientists line up nicely with some of the features in real images from NASA's Cassini spacecraft that appear to be discrete columns of spray.

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This simulation, which begins and ends with a real image from NASA's Cassini spacecraft, demonstrates how the appearance of discrete jets could be an optical illusion that varies based on viewing geometry.
This simulation, which begins and ends with a real image from NASA's Cassini spacecraft, demonstrates how the appearance of discrete jets could be an optical illusion that varies based on viewing geometry.

Icy Curtain Eruptions on Enceladus Create an Illusion of Discrete Jets (Simulation)

This simulation, which begins and ends with a real image from NASA's Cassini spacecraft, demonstrates how the appearance of discrete jets could be an optical illusion that varies based on viewing geometry.

Target: Enceladus
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem
ID#: PIA19060
Added: 2015-05-06

Views: 351

Icy Curtain Eruptions on Enceladus Create an Illusion of Discrete Jets (Simulation)

This simulation, which begins and ends with a real image from NASA's Cassini spacecraft, demonstrates how the appearance of discrete jets could be an optical illusion that varies based on viewing geometry.

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Saturn's surface is painted with swirls and shadows. Each swirl here is a weather system, reminding us of how dynamic Saturn's atmosphere is. This image is from NASA's Cassini spacecraft.
Saturn's surface is painted with swirls and shadows. Each swirl here is a weather system, reminding us of how dynamic Saturn's atmosphere is. This image is from NASA's Cassini spacecraft.

Swirls and Shadows

Saturn's surface is painted with swirls and shadows. Each swirl here is a weather system, reminding us of how dynamic Saturn's atmosphere is. This image is from NASA's Cassini spacecraft.

Target: Saturn
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Wide Angle
ID#: PIA18311
Added: 2015-05-04

Views: 279

Swirls and Shadows

Saturn's surface is painted with swirls and shadows. Each swirl here is a weather system, reminding us of how dynamic Saturn's atmosphere is. This image is from NASA's Cassini spacecraft.

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Not all of Saturn's rings are created equal: here the C and D rings appear side-by-side, but the C ring, which occupies the bottom half of this image, clearly outshines its neighbor. This image is from NASA's Cassini spacecraft.
Not all of Saturn's rings are created equal: here the C and D rings appear side-by-side, but the C ring, which occupies the bottom half of this image, clearly outshines its neighbor. This image is from NASA's Cassini spacecraft.

Faint D Ring

Not all of Saturn's rings are created equal: here the C and D rings appear side-by-side, but the C ring, which occupies the bottom half of this image, clearly outshines its neighbor. This image is from NASA's Cassini spacecraft.

Target: S Rings
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18313
Added: 2015-04-27

Views: 281

Faint D Ring

Not all of Saturn's rings are created equal: here the C and D rings appear side-by-side, but the C ring, which occupies the bottom half of this image, clearly outshines its neighbor. This image is from NASA's Cassini spacecraft.

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Surface features on Rhea, mostly impact craters in this image from NASA's Cassini spacecraft, are thrown into sharp relief thanks to long shadows.
Surface features on Rhea, mostly impact craters in this image from NASA's Cassini spacecraft, are thrown into sharp relief thanks to long shadows.

Rhea in Relief

Surface features on Rhea, mostly impact craters in this image from NASA's Cassini spacecraft, are thrown into sharp relief thanks to long shadows.

Target: Rhea
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18310
Added: 2015-04-20

Views: 4584

Rhea in Relief

Surface features on Rhea, mostly impact craters in this image from NASA's Cassini spacecraft, are thrown into sharp relief thanks to long shadows.

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This graphic plots the source locations of geysers scientists have located on Enceladus' south polar terrain, with the 36 most active geyser sources marked and color coded by the behavior of the grains erupting from the geysers.
This graphic plots the source locations of geysers scientists have located on Enceladus' south polar terrain, with the 36 most active geyser sources marked and color coded by the behavior of the grains erupting from the geysers.

Tendril-producing Geysers on Enceladus' South Polar Terrain

This graphic plots the source locations of geysers scientists have located on Enceladus' south polar terrain, with the 36 most active geyser sources marked and color coded by the behavior of the grains erupting from the geysers.

Target: Enceladus
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
ID#: PIA17192
Added: 2015-04-14

Views: 584

Tendril-producing Geysers on Enceladus' South Polar Terrain

This graphic plots the source locations of geysers scientists have located on Enceladus' south polar terrain, with the 36 most active geyser sources marked and color coded by the behavior of the grains erupting from the geysers.

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This collage of NASA's Cassini spacecraft images and computer simulations shows how long, sinuous features from Enceladus can be modeled by tracing the trajectories of tiny, icy grains ejected from the moon's south polar geysers.
This collage of NASA's Cassini spacecraft images and computer simulations shows how long, sinuous features from Enceladus can be modeled by tracing the trajectories of tiny, icy grains ejected from the moon's south polar geysers.

Simulations of the Tendrils

This collage of NASA's Cassini spacecraft images and computer simulations shows how long, sinuous features from Enceladus can be modeled by tracing the trajectories of tiny, icy grains ejected from the moon's south polar geysers.

Target: Enceladus
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem
ID#: PIA17191
Added: 2015-04-14

Views: 1018

Simulations of the Tendrils

This collage of NASA's Cassini spacecraft images and computer simulations shows how long, sinuous features from Enceladus can be modeled by tracing the trajectories of tiny, icy grains ejected from the moon's south polar geysers.

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Although we are used to seeing Saturn's moons lit directly by the Sun, sometimes we can catch them illuminated by 'Saturnshine.' Here, NASA's Cassini spacecraft see Mimas (upper right) lit by light reflected off of Saturn.
Although we are used to seeing Saturn's moons lit directly by the Sun, sometimes we can catch them illuminated by 'Saturnshine.' Here, NASA's Cassini spacecraft see Mimas (upper right) lit by light reflected off of Saturn.

Mimas by Saturnshine

Although we are used to seeing Saturn's moons lit directly by the Sun, sometimes we can catch them illuminated by 'Saturnshine.' Here, NASA's Cassini spacecraft see Mimas (upper right) lit by light reflected off of Saturn.

Target: Mimas
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18312
Added: 2015-04-13

Views: 549

Mimas by Saturnshine

Although we are used to seeing Saturn's moons lit directly by the Sun, sometimes we can catch them illuminated by 'Saturnshine.' Here, NASA's Cassini spacecraft see Mimas (upper right) lit by light reflected off of Saturn.

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NASA's Cassini spacecraft stared toward Saturn's two-toned moon Iapetus for about a week in early 2015, in a campaign motivated in part to investigate subtle color differences within the moon's bright terrain.
NASA's Cassini spacecraft stared toward Saturn's two-toned moon Iapetus for about a week in early 2015, in a campaign motivated in part to investigate subtle color differences within the moon's bright terrain.

Investigating Subtle Colors on Iapetus

NASA's Cassini spacecraft stared toward Saturn's two-toned moon Iapetus for about a week in early 2015, in a campaign motivated in part to investigate subtle color differences within the moon's bright terrain.

Target: Iapetus
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA19062
Added: 2015-04-06

Views: 457

Investigating Subtle Colors on Iapetus

NASA's Cassini spacecraft stared toward Saturn's two-toned moon Iapetus for about a week in early 2015, in a campaign motivated in part to investigate subtle color differences within the moon's bright terrain.

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NASA's Cassini captured these views of Saturn's icy moon Rhea on Feb. 9. The spacecraft returned to equatorial orbits around Saturn in March after nearly two years, allowing the mission to once again have close encounters with moons other than Titan.
NASA's Cassini captured these views of Saturn's icy moon Rhea on Feb. 9. The spacecraft returned to equatorial orbits around Saturn in March after nearly two years, allowing the mission to once again have close encounters with moons other than Titan.

Return to Rhea

NASA's Cassini captured these views of Saturn's icy moon Rhea on Feb. 9. The spacecraft returned to equatorial orbits around Saturn in March after nearly two years, allowing the mission to once again have close encounters with moons other than Titan.

Target: Rhea
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle, Imaging Science Subsystem - Wide Angle
ID#: PIA19057
Added: 2015-03-30

Views: 11918

Return to Rhea

NASA's Cassini captured these views of Saturn's icy moon Rhea on Feb. 9. The spacecraft returned to equatorial orbits around Saturn in March after nearly two years, allowing the mission to once again have close encounters with moons other than Titan.

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Much as its name implies, tiny Epimetheus (Greek for hindsight) was discovered in hindsight. It was only later that astronomers realized that Janus and Epithemeus were not the same object.
Much as its name implies, tiny Epimetheus (Greek for hindsight) was discovered in hindsight. It was only later that astronomers realized that Janus and Epithemeus were not the same object.

20-20 Hindsight

Much as its name implies, tiny Epimetheus (Greek for hindsight) was discovered in hindsight. It was only later that astronomers realized that Janus and Epithemeus were not the same object.

Target: S Rings
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
Instrument: Imaging Science Subsystem - Narrow Angle
ID#: PIA18305
Added: 2015-03-30

Views: 538

20-20 Hindsight

Much as its name implies, tiny Epimetheus (Greek for hindsight) was discovered in hindsight. It was only later that astronomers realized that Janus and Epithemeus were not the same object.

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From afar, Saturn's rings look like a solid, homogenous disk of material. But upon closer examination from NASA's Cassini spacecraft, we see that there are varied structures in the rings at almost every scale imaginable.
From afar, Saturn's rings look like a solid, homogenous disk of material. But upon closer examination from NASA's Cassini spacecraft, we see that there are varied structures in the rings at almost every scale imaginable.

Groovy

From afar, Saturn's rings look like a solid, homogenous disk of material. But upon closer examination from NASA's Cassini spacecraft, we see that there are varied structures in the rings at almost every scale imaginable.

Target: S Rings
Mission: Cassini-Huygens
Spacecraft: Curiosity
Instrument: Imaging Science Subsystem - Wide Angle
ID#: PIA18308
Added: 2015-03-16

Views: 733

Groovy

From afar, Saturn's rings look like a solid, homogenous disk of material. But upon closer examination from NASA's Cassini spacecraft, we see that there are varied structures in the rings at almost every scale imaginable.

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This illustration depicts potential origins of methane found in the plume of gas and ice particles that sprays from Saturn's moon, Enceladus, based on research by scientists working with the Ion and Neutral Mass Spectrometer on NASA's Cassini mission.
This illustration depicts potential origins of methane found in the plume of gas and ice particles that sprays from Saturn's moon, Enceladus, based on research by scientists working with the Ion and Neutral Mass Spectrometer on NASA's Cassini mission.

Trapping of Methane In Enceladus' Ocean

This illustration depicts potential origins of methane found in the plume of gas and ice particles that sprays from Saturn's moon, Enceladus, based on research by scientists working with the Ion and Neutral Mass Spectrometer on NASA's Cassini mission.

Target: Enceladus
Mission: Cassini-Huygens
Spacecraft: Cassini Orbiter
ID#: PIA19059
Added: 2015-03-11

Views: 930

Trapping of Methane In Enceladus' Ocean

This illustration depicts potential origins of methane found in the plume of gas and ice particles that sprays from Saturn's moon, Enceladus, based on research by scientists working with the Ion and Neutral Mass Spectrometer on NASA's Cassini mission.

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