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Add Image to Favorite List 2018-05-14 Saturn Cassini-Huygens
 ISS - Wide Angle
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Saturn's rings cast dark bands across cloud tops in the northern hemisphere. Near the pole, an elongated shadow can be seen from Saturn's moon Tethys. Icy moons Dione (front right) and Enceladus (back right) are also seen by NASA's Cassini spacecraft.
PIA18320:
A Stage for Shadows
Full Resolution:     TIFF (2.986 MB)     JPEG (100.5 kB)
Add Image to Favorite List 2018-05-07 Saturn Cassini-Huygens
 ISS - Narrow Angle
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On March 13, 2006 Cassini's narrow-angle camera captured this look at Saturn and its rings, seen here nearly edge on. The frame also features Mimas and tiny Janus (above the rings), and Tethys (below the rings).
PIA18323:
Postcard from the Ring Plane
Full Resolution:     TIFF (1.585 MB)     JPEG (26.01 kB)
Add Image to Favorite List 2018-04-23 S Rings Cassini-Huygens
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Saturn's rings display their subtle colors in this view captured on Aug. 22, 2009, by NASA's Cassini spacecraft. The ice particles that make up the rings range in size from smaller than a grain of sand to as large as mountains.
PIA22418:
Gravity's Rainbow
Full Resolution:     TIFF (2.832 MB)     JPEG (109.5 kB)
Add Image to Favorite List 2018-03-19 S Rings Cassini-Huygens
 ISS - Narrow Angle
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Saturn's shadow sweeps across the rings in a view captured on Nov. 5, 2006 by NASA's Cassini spacecraft. Countless icy particles that make up the rings bask in full daylight.
PIA17199:
The Edge of the Night
Full Resolution:     TIFF (3.505 MB)     JPEG (1.949 MB)
Add Image to Favorite List 2018-03-05 Saturn Cassini-Huygens
 ISS - Wide Angle
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In this image, NASA's Cassini spacecraft sees Saturn and its rings through a wispy haze of Sun glare.
PIA17185:
Glare on the Window
Full Resolution:     TIFF (3.071 MB)     JPEG (58.12 kB)
Add Image to Favorite List 2018-01-08 S Rings Cassini-Huygens
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Saturn's rings, made of countless icy particles, form a translucent veil in this view from NASA's Cassini spacecraft. Saturn's tiny moon Pan orbits within the Encke Gap in the A ring.
PIA21901:
Veil of Ice
Full Resolution:     TIFF (614.7 kB)     JPEG (44.16 kB)
Add Image to Favorite List 2017-11-13 S Rings Cassini-Huygens
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In this image from NASA's Cassini spacecraft, a bright and narrow ringlet located toward the outer edge of the C ring is flanked by two broader features called plateaus.
PIA21356:
So Long, C Ring
Full Resolution:     TIFF (882.1 kB)     JPEG (91.68 kB)
Add Image to Favorite List 2017-10-23 S Rings Cassini-Huygens
 ISS - Wide Angle
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Saturn's graceful lanes of orbiting ice (its iconic rings) wind their way around the planet to pass beyond the horizon in this view from NASA's Cassini spacecraft.
PIA21352:
The Grace of Saturn
Full Resolution:     TIFF (807.8 kB)     JPEG (52.88 kB)
Add Image to Favorite List 2017-10-16 S Rings Cassini-Huygens
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Cassini used its Ultraviolet Imaging Spectrograph to capture this final view of ultraviolet auroral emissions in Saturn's north polar region on Sept. 14, 2017.
PIA21899:
Polar Lights at Saturn Bid Cassini Farewell Animation Icon
Full Resolution:     TIFF (412.9 kB)     JPEG (27.56 kB)
Add Image to Favorite List 2017-10-16 S Rings Cassini-Huygens
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NASA's Cassini obtained this panoramic view of Saturn's rings on Sept. 9, 2017, just minutes after it passed through the ring plane. The Cassini spacecraft ended its mission on Sept. 15, 2017.
PIA21898:
Inside-Out Rings: View From Beneath
Full Resolution:     TIFF (6.37 MB)     JPEG (573 kB)
Add Image to Favorite List 2017-10-16 S Rings Cassini-Huygens
 Imaging Science Subsystem
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Saturn looms in the foreground of this mosaic of NASA's Cassini images, taken by the spacecraft on May 28, 2017. The planet is adorned by ring shadows. The icy rings emerge from behind the planet. Cassini ended its mission on Sept. 15, 2017.
PIA21897:
Inside-Out Rings: Over the Limb
Full Resolution:     TIFF (1.39 MB)     JPEG (166.9 kB)
Add Image to Favorite List 2017-10-02 Saturn Cassini-Huygens
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Stunning views like this image of Saturn's night side are only possible thanks to our robotic emissaries like NASA's Cassini spacecraft. The Cassini spacecraft ended its mission on Sept. 15, 2017.
PIA21350:
Goodbye to the Dark Side
Full Resolution:     TIFF (508.2 kB)     JPEG (30.4 kB)
Add Image to Favorite List 2017-09-15 S Rings Cassini-Huygens
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This view of Saturn's A ring features a lone 'propeller,' one of many such features created by small moonlets embedded in the rings as they attempt, unsuccessfully, to open gaps in the ring material, taken by NASA's Cassini spacecraft on Sept. 13, 2017.
PIA21894:
Lone Propeller
Full Resolution:     TIFF (625.6 kB)     JPEG (66.32 kB)
Add Image to Favorite List 2017-09-15 S Rings Cassini-Huygens
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This image of Saturn's rings was taken by NASA's Cassini spacecraft on Sept. 13, 2017. It is among the last images Cassini sent back to Earth.
PIA21891:
Finale Ringscape
Full Resolution:     TIFF (495.3 kB)     JPEG (47.92 kB)
Add Image to Favorite List 2017-09-07 S Rings Cassini-Huygens
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This image from NASA's Cassini spacecraft is one the highest-resolution color images of any part of Saturn's rings, to date, showing a portion of the inner-central part of the planet's B Ring.
PIA21628:
Colorful Structure at Fine Scales
Full Resolution:     TIFF (5.879 MB)     JPEG (223.6 kB)
Add Image to Favorite List 2017-09-06 S Rings Cassini-Huygens
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This view from NASA's Cassini spacecraft shows a wave structure in Saturn's rings known as the Janus 2:1 spiral density wave.
PIA21627:
Staggering Structure
Full Resolution:     TIFF (1.05 MB)     JPEG (150.8 kB)
Add Image to Favorite List 2017-08-26 S Rings Cassini-Huygens
 ISS - Wide Angle
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This frame from a movie from NASA's Cassini spacecraft offers a unique perspective on Saturn's ring system. Cassini from within the gap between the planet and its rings, looking outward.
PIA21886:
Cassini's 'Inside-Out' Rings Movie Animation Icon
Full Resolution:     TIFF (227.1 kB)     JPEG (22.1 kB)
Add Image to Favorite List 2017-08-07 Prometheus Cassini-Huygens
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The thin sliver of Saturn's moon Prometheus lurks near ghostly structures in Saturn's narrow F ring in this view from NASA's Cassini spacecraft. Many of the narrow ring's faint and wispy features result from its gravitational interactions with Prometheus.
PIA21340:
Prometheus and the Ghostly F Ring
Full Resolution:     TIFF (656.5 kB)     JPEG (52.93 kB)
Add Image to Favorite List 2017-07-24 S Rings Cassini-Huygens
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Recent images captured by NASA's Cassini spacecraft show features in Saturn's C ring called 'plateaus' revealing a streaky texture that is very different from the textures of the regions around them.
PIA21619:
More Textures in the C Ring
Full Resolution:     TIFF (1.004 MB)     JPEG (91.53 kB)
Add Image to Favorite List 2017-07-24 S Rings Cassini-Huygens
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The central feature in this image from NASA's Cassini spacecraft is called Plateau P1. Plateau regions are brighter than their surroundings, and have sharp edges.
PIA21618:
Textures in the C Ring
Full Resolution:     TIFF (980.5 kB)     JPEG (56.47 kB)
Add Image to Favorite List 2017-07-24 S Rings Cassini-Huygens
 ISS - Wide Angle
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This view from NASA's Cassini spacecraft looks toward the sunlit side of the rings from above the ringplane. Although the rings lack the many colors of the rainbow, they arc across the sky of Saturn.
PIA21339:
Ring-Bow
Full Resolution:     TIFF (654 kB)     JPEG (50.35 kB)
Add Image to Favorite List 2017-06-19 S Rings Cassini-Huygens
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Many of the features seen in Saturn's rings are shaped by the planet's moons. This view from NASA's Cassini spacecraft shows two different effects of moons that cause waves in the A ring and kinks in a faint ringlet.
PIA21333:
Grooves and Kinks in the Rings
Full Resolution:     TIFF (857.3 kB)     JPEG (94.45 kB)
Add Image to Favorite List 2017-05-29 Daphnis Cassini-Huygens
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This close-up view captured by NASA's Cassini spacecraft of the Keeler Gap, which is near the outer edge of Saturn's main rings, shows in great detail just how much the moon Daphnis affects the edges of the gap.
PIA21329:
Waving Goodbye
Full Resolution:     TIFF (935.8 kB)     JPEG (113.1 kB)
Add Image to Favorite List 2017-05-15 S Rings Cassini-Huygens
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The projection of Saturn's shadow on the rings grows shorter as Saturn's season advances toward northern summer, thanks to the planet's permanent tilt as it orbits the sun, as seen by NASA's Cassini spacecraft.
PIA21328:
Short Shadow
Full Resolution:     TIFF (539.3 kB)     JPEG (52.71 kB)
Add Image to Favorite List 2017-05-10 S Rings Cassini-Huygens
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This view from NASA's Cassini spacecraft is the sharpest ever taken of belts of the features called propellers in the middle part of Saturn's A ring. The propellers are the small, bright features that look like double dashes.
PIA21448:
Propeller Belts of Saturn
Full Resolution:     TIFF (1.05 MB)     JPEG (290 kB)
Add Image to Favorite List 2017-05-10 S Rings Cassini-Huygens
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This view from NASA's Cassini spacecraft shows Cassini's best image of the propeller feature known informally as Bleriot. Bleriot is the largest of the propellers in Saturn's rings.
PIA21447:
Bleriot Propeller Close-up
Full Resolution:     TIFF (1.05 MB)     JPEG (183.4 kB)
Add Image to Favorite List 2017-04-10 S Rings Cassini-Huygens
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Saturn's C ring isn't uniformly bright. Instead, about a dozen regions of the ring stand out as noticeably brighter than the rest of the ring, as shown here by NASA's Cassini spacecraft.
PIA20529:
Plateaus Up Close
Full Resolution:     TIFF (910.9 kB)     JPEG (59.73 kB)
Add Image to Favorite List 2017-03-30 S Rings Cassini-Huygens
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The propeller informally named 'Earhart' is seen in this view from NASA's Cassini spacecraft at much higher resolution than ever before. In this view, half of the Encke Gap is visible as the dark region at right.
PIA21437:
'Earhart' Propeller in Saturn's A Ring
Full Resolution:     TIFF (778.4 kB)     JPEG (105.3 kB)
Add Image to Favorite List 2017-03-27 S Rings Cassini-Huygens
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What appears as a pair of bright dashes at the center of this image is one of the features rings scientists have dubbed 'propellers.' This image of Bleriot is from NASA's Cassini spacecraft.
PIA20525:
Checking in on Bleriot
Full Resolution:     TIFF (912 kB)     JPEG (134.7 kB)
Add Image to Favorite List 2017-03-20 S Rings Cassini-Huygens
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NASA's Cassini spacecraft zoomed in on Saturn's A ring, revealing narrow, detailed structures that get even finer as the cameras' resolution increases.
PIA20526:
A Resolution
Full Resolution:     TIFF (966.4 kB)     JPEG (59.02 kB)
Add Image to Favorite List 2017-03-02 S Rings Cassini-Huygens
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NASA's Cassini spacecraft captured these remarkable views of a propeller feature in Saturn's A ring on Feb. 21, 2017. These are the sharpest images taken of a propeller (nickedname 'Santos-Dumond') so far.
PIA21433:
Cassini Targets a Propeller in Saturn's A Ring
Full Resolution:     TIFF (865 kB)     JPEG (124 kB)
Add Image to Favorite List 2017-02-27 Saturn Cassini-Huygens
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The north pole of Saturn sits at the center of its own domain. Around it swirl the clouds, driven by the fast winds of Saturn, as seen by NASA's Cassini spacecraft.
PIA20520:
At the Center
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Add Image to Favorite List 2017-02-24 S Rings Cassini-Huygens
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As NASA's Cassini spacecraft continues its weekly ring-grazing orbits, diving just past the outside of Saturn's F ring, it is tracking several small, persistent objects there.
PIA21432:
Hardy Objects in Saturn's F Ring
Full Resolution:     TIFF (1.207 MB)     JPEG (83.48 kB)
Add Image to Favorite List 2017-02-13 S Rings Cassini-Huygens
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When seen up close, the F ring of Saturn resolves into multiple dusty strands. NASA's Cassini spacecraft's view shows three bright strands and a very faint fourth strand off to the right.
PIA20519:
F for Fabulous
Full Resolution:     TIFF (286.5 kB)     JPEG (26.94 kB)
Add Image to Favorite List 2017-01-30 S Rings Cassini-Huygens
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NASA's Cassini image features a density wave in Saturn's A ring (at left) that lies around 134,500 km from Saturn. Density waves are accumulations of particles at certain distances from the planet.
PIA21060:
Moon Waves and Moon Wakes
Full Resolution:     TIFF (1.042 MB)     JPEG (199 kB)
Add Image to Favorite List 2017-01-30 S Rings Cassini-Huygens
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This image from NASA's Cassini mission shows a region in Saturn's A ring. The view contains many small, bright blemishes due to cosmic rays and charged particle radiation near the planet.
PIA21059:
The Propeller Belts in Saturn's A Ring
Full Resolution:     TIFF (897.7 kB)     JPEG (156.7 kB)
Add Image to Favorite List 2017-01-30 S Rings Cassini-Huygens
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This image shows a region in Saturn's outer B ring. NASA's Cassini spacecraft viewed this area at a level of detail twice as high as it had ever been observed before. And from this view, it is clear that there are still finer details to uncover.
PIA21058:
Saturn's B Ring, Finer Than Ever
Full Resolution:     TIFF (1.042 MB)     JPEG (210.1 kB)
Add Image to Favorite List 2017-01-30 S Rings Cassini-Huygens
 ISS - Wide Angle
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This image from NASA's Cassini spacecraft shows a region in Saturn's outer B ring. The view here is of the outer edge of the B ring, at left, which is perturbed by the most powerful gravitational resonance in the rings.
PIA21057:
Straw in the B Ring's Edge
Full Resolution:     TIFF (909.3 kB)     JPEG (153.1 kB)
Add Image to Favorite List 2017-01-16 Saturn Cassini-Huygens
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This view, seen by NASA's Cassini spacecraft, shows Saturn's daylit side, which no Earth-based telescope could capture. A spacecraft in orbit, like Cassini, can capture stunning scenes that would be impossible from our home planet.
PIA20517:
Peeking over Saturn's Shoulder
Full Resolution:     TIFF (662.3 kB)     JPEG (29.3 kB)
Add Image to Favorite List 2016-12-19 Mimas Cassini-Huygens
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It may look as though Saturn's moon Mimas is crashing through the rings in this image taken by NASA's Cassini spacecraft, but Mimas is actually 28,000 mi (45,000 km) away from the rings. There is a strong connection between the icy moon and Saturn's rings
PIA20510:
Crash Course
Full Resolution:     TIFF (365 kB)     JPEG (42.02 kB)
Add Image to Favorite List 2016-12-12 Daphnis Cassini-Huygens
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Captured by NASA's Cassini spacecraft, the waves that Saturn's moon, Daphnis, raises on the edges of the Keeler Gap, can also be used to deduce the moon's mass and even some of its orbital behavior.
PIA20511:
Watching the Wavemaker
Full Resolution:     TIFF (590.8 kB)     JPEG (62 kB)
Add Image to Favorite List 2016-11-28 S Rings Cassini-Huygens
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Saturn's icy moon Mimas is dwarfed by the planet's enormous rings as seen by NASA's Cassini spacecraft.
PIA20509:
Tiny Mimas, Huge Rings
Full Resolution:     TIFF (769 kB)     JPEG (81.77 kB)
Add Image to Favorite List 2016-11-21 S Rings Cassini-Huygens
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Surface features are visible on Saturn's moon Prometheus in this view from NASA's Cassini spacecraft. Most of Cassini's images of Prometheus are too distant to resolve individual craters, making views like this a rare treat.
PIA20508:
Faint F Ring and Prometheus
Full Resolution:     TIFF (250.3 kB)     JPEG (26.44 kB)
Add Image to Favorite List 2016-11-07 S Rings Cassini-Huygens
 ISS - Wide Angle
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This view from NASA's Cassini spacecraft showcases some of the amazingly detailed structure of Saturn's rings. The image was taken in visible light with the Cassini spacecraft wide-angle camera on Sept. 24, 2016.
PIA20506:
Ring Details on Display
Full Resolution:     TIFF (651 kB)     JPEG (65.42 kB)
Add Image to Favorite List 2016-10-24 S Rings Cassini-Huygens
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Saturn's clouds are full of raw beauty, but they also represent a playground for a branch of physics called fluid dynamics, which seeks to understand the motion of gases and liquids. This image is from NASA's Cassini spacecraft.
PIA20503:
Fluid Fantasy
Full Resolution:     TIFF (787.4 kB)     JPEG (51.31 kB)
Add Image to Favorite List 2016-10-17 S Rings Cassini-Huygens
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Pandora, seen here by NASA's Cassini spacecraft, in isolation beside Saturn's kinked and constantly changing F ring.
PIA20504:
Lonely Moon
Full Resolution:     TIFF (672.6 kB)     JPEG (59.2 kB)
Add Image to Favorite List 2016-10-10 S Rings Cassini-Huygens
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NASA's Cassini spacecraft looks down at the rings of Saturn from above the planet's nightside. The darkened globe of Saturn is seen here at lower right, along with the shadow it casts across the rings.
PIA20505:
In Daylight on the Night Side
Full Resolution:     TIFF (758.8 kB)     JPEG (62.4 kB)
Add Image to Favorite List 2016-10-03 S Rings Cassini-Huygens
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Two tiny moons of Saturn, almost lost amid the planet's enormous rings, are seen orbiting in this image from NASA's Cassini spacecraft. Pan, lower-right, is in the process of overtaking the slower Atlas, visible at upper-left.
PIA20501:
Two Tiny Moons
Full Resolution:     TIFF (661 kB)     JPEG (60.37 kB)
Add Image to Favorite List 2016-09-26 S Rings Cassini-Huygens
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NASA's Cassini spacecraft looks toward the brilliant disk of Saturn, surrounded by the icy lanes of its rings. Faint wisps of cloud are visible in the atmosphere. At bottom, ring shadows trace delicate, curving lines across the planet.
PIA20500:
Hidden Wonders
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Add Image to Favorite List 2016-09-12 S Rings Cassini-Huygens
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Saturn's shadow stretched beyond the edge of its rings for many years after NASA's Cassini first arrived at Saturn, casting an ever-lengthening shadow that reached its maximum extent at the planet's 2009 equinox. This image was captured in 2015.
PIA20498:
Barely Bisected Rings
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Add Image to Favorite List 2016-09-05 S Rings Cassini-Huygens
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Captured by NASA's Cassini spacecraft, Saturn's rings appear to bend as they pass behind the planet's darkened limb due to refraction by Saturn's upper atmosphere.
PIA20497:
A Dark Bend
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Add Image to Favorite List 2016-08-08 S Rings Cassini-Huygens
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The shadow of Saturn on the rings, which stretched across all of the rings earlier in NASA's Cassini's mission, now barely makes it past the Cassini division.
PIA20494:
Long Divisions
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Add Image to Favorite List 2016-07-25 S Rings Cassini-Huygens
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Captured by NASA's Cassini spacecraft, Saturn's A and F rings appear bizarrely warped where they intersect the planet's limb, whose atmosphere acts here like a very big lens.
PIA20491:
Bent Rings
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Add Image to Favorite List 2016-07-18 S Rings Cassini-Huygens
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This image from NASA's Cassini spacecraft captures Saturn's main rings, along with its moons, which are much brighter than most stars.
PIA20489:
Not Really Starless at Saturn
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Add Image to Favorite List 2016-07-11 Tethys Cassini-Huygens
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An illusion of perspective, Saturn's moon Tethys seems to hang above the planet's north pole in this view from NASA's Cassini spacecraft.
PIA20488:
Tethys Tops Saturn
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Add Image to Favorite List 2016-07-04 Pan Cassini-Huygens
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Pan and moons like it have profound effects on Saturn's rings. The effects can range from clearing gaps, to creating new ringlets, to raising vertical waves that rise above and below the ring plane, as seen by NASA's Cassini spacecraft.
PIA20490:
Pandemonium
Full Resolution:     TIFF (782.1 kB)     JPEG (61.03 kB)
Add Image to Favorite List 2016-06-27 Enceladus Cassini-Huygens
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At first glance, the most obvious features in this image from NASA's Cassini spacecraft are Saturn's rings and the icy moon Enceladus. Upon closer inspection, Saturn's night side is also visible.
PIA20487:
Dark and Arc
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Add Image to Favorite List 2016-06-20 S Rings Cassini-Huygens
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As Saturn's northern hemisphere summer approaches, NASA's Cassini spacecraft captured the shadows of the rings creep ever southward across the planet.
PIA20486:
Shadow Below
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Add Image to Favorite List 2016-06-13 S Rings Cassini-Huygens
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NASA's Cassini spacecraft spies a bright disruption (features known as 'jets') in Saturn's narrow F ring suggesting it may have been disturbed recently, though not by Pandora which lurks nearby at lower right.
PIA20485:
Not Guilty
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Add Image to Favorite List 2016-06-06 Titan Cassini-Huygens
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Distant Titan, its northern hemisphere drenched in the sunlight of late spring, hangs above Saturn's rings in this image captured by NASA's Cassini spacecraft.
PIA20484:
Rings Interrupted
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Add Image to Favorite List 2016-05-30 Mimas Cassini-Huygens
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Saturn's moons Janus and Mimas coast in their silent orbits beyond the rings in this view from NASA's Cassini spacecraft. The ansa, or outer edge of the rings, is visible at left.
PIA18369:
In Formation
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Add Image to Favorite List 2016-05-23 S Rings Cassini-Huygens
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NASA's Cassini spacecraft shows off this angled view of the rings and Saturn's poles taken on Feb. 26, 2016.
PIA20481:
Up and Over
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Add Image to Favorite List 2016-05-16 S Rings Cassini-Huygens
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Most planetary rings appear to be shaped, at least in part, by moons orbiting their planets, but nowhere is that more evident than in Saturn's F ring as seen by NASA's Cassini spacecraft.
PIA20483:
Sculptor and His Work
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Add Image to Favorite List 2016-04-25 S Rings Cassini-Huygens
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At first glance, Saturn's rings appear to be intersecting themselves in an impossible way. In actuality, this view from NASA's Cassini spacecraft shows the rings in front of the planet, upon which the shadow of the rings is cast.
PIA18367:
Criss-Crossed Rings
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Add Image to Favorite List 2016-04-11 S Rings Cassini-Huygens
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It's difficult to get a sense of scale when viewing Saturn's rings, but the Cassini Division (seen here between the bright B ring and dimmer A ring) is almost as wide as the planet Mercury as seen by NASA's Cassini spacecraft.
PIA18365:
The Great Divide
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Add Image to Favorite List 2016-04-04 S Rings Cassini-Huygens
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NASA's Cassini spacecraft captured this image of Saturn as it views the planet and its expansive rings from all sorts of angles. Here, a half-lit Saturn sits askew as tiny Dione looks on from lower left.
PIA18364:
Saturn Askew
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Add Image to Favorite List 2016-03-28 S Rings Cassini-Huygens
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Two moons hover above the rings from this perspective, Enceladus (313 miles or 504 kilometers across), at left, and Janus (111 miles or 179 kilometers across), at right as seen by NASA's Cassini spacecraft.
PIA18360:
Dark Moons, Dark Rings
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Add Image to Favorite List 2016-02-22 S Rings Cassini-Huygens
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Three of Saturn's moons, Tethys, Enceladus and Mimas, are captured in this group photo from NASA's Cassini spacecraft.
PIA18357:
Three Times the Fun
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Add Image to Favorite List 2016-02-08 Tethys Cassini-Huygens
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Saturn's moon Tethys appears to float between two sets of rings in this view from NASA's Cassini spacecraft, but it's just a trick of geometry. The rings, which are seen nearly edge-on, are the dark bands above Tethys.
PIA18355:
Ices and Shadows
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Add Image to Favorite List 2016-02-01 S Rings Cassini-Huygens
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The soft, bright-and-dark bands displayed by Saturn in this view from NASA's Cassini spacecraft are the signature of methane in the planet's atmosphere.
PIA18354:
Methane Saturn
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Add Image to Favorite List 2016-01-18 S Rings Cassini-Huygens
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Saturn's moons, like Janus, irregularly shaped bodies, and Tethys, spherically shaped, demonstrate the main difference between small moons and large ones. It's all about the moon's shape.
PIA18353:
Janus and Tethys
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Add Image to Favorite List 2016-01-11 Tethys Cassini-Huygens
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NASA's Cassini spacecraft captured Saturn, around 10 times the diameter of Earth, dwarfs it retinue of moons. Tethys is seen here at lower right.
PIA18350:
Saturn the Mighty
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Add Image to Favorite List 2016-01-04 S Rings Cassini-Huygens
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NASA's Cassini spacecraft captured Enceladus above the rings and Rhea below. The comparatively tiny speck of Atlas can also be seen just above and to the left of Rhea, and just above the thin line of Saturn's F ring.
PIA18352:
Triple Play
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Add Image to Favorite List 2015-12-07 Tethys Cassini-Huygens
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Tethys, dwarfed by the scale of Saturn and its rings, appears as an elegant crescent in this image taken by NASA's Cassini Spacecraft. Views like this are impossible from Earth, where we only see Saturn's moons as (more or less) fully illuminated disks.
PIA18348:
Crescent Tethys and Rings
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Add Image to Favorite List 2015-11-30 Enceladus Cassini-Huygens
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Enceladus' famous south polar water jets can be seen just above the moon's dark, southern limb in this image captured by NASA's Cassini spacecraft.
PIA18343:
Water World
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Add Image to Favorite List 2015-11-23 Dione Cassini-Huygens
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Saturn's rings are so expansive that they often sneak into pictures of other bodies from NASA's Cassini spacecraft. Here, they appear with the planet in a picture taken during a close flyby of Dione.
PIA18344:
Dione Before the Rings
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Add Image to Favorite List 2015-11-09 Epimetheus Cassini-Huygens
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Although Epimetheus appears to be lurking above the rings here, it's actually just an illusion resulting from the viewing angle of NASA's Cassini spacecraft. In reality, Epimetheus and the rings both orbit in Saturn's equatorial plane.
PIA18342:
Epimetheus Above the Rings
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Add Image to Favorite List 2015-10-19 S Rings Cassini-Huygens
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In this image from NASA's Cassini spacecraft we see features ring scientists call 'gores,' to the right of the bright clump, and a 'jet,' to the left of the bright spot.
PIA18337:
Gored Clump in Saturn's F Ring
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Add Image to Favorite List 2015-10-12 S Rings Cassini-Huygens
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Although Mimas and Pandora, shown here, both orbit Saturn, they are very different moons. The shapes of moons can teach us much about their history. This image is from NASA's Cassini spacecraft.
PIA18339:
Worlds Apart
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Add Image to Favorite List 2015-09-21 S Rings Cassini-Huygens
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Prometheus and Pandora are almost hidden in Saturn's rings in this image captured by NASA's Cassini spacecraft. Prometheus is the left most moon in the ring plane, roughly in the center of the image. Pandora is towards the right.
PIA18334:
Moons In Hiding
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Add Image to Favorite List 2015-09-14 Tethys ISS - Wide Angle
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The night sides of Saturn and Tethys are dark places indeed. This image from NASA's Cassini spacecraft shows shadows are darker areas than sunlit areas, and in space, with no air to scatter the light, shadows can appear almost totally black.
PIA18333:
From the Night Side
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Add Image to Favorite List 2015-08-20 Dione Cassini-Huygens
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Saturn's moon Dione hangs in front of Saturn's rings in this view taken by NASA's Cassini spacecraft during the inbound leg of its last close flyby of the icy moon.
PIA17201:
Dione: Craters and Rings
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Add Image to Favorite List 2015-08-20 Dione Cassini-Huygens
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Dione hangs in front of Saturn and its icy rings in this view, captured during NASA's Cassini's final close flyby of the icy moon. North on Dione is up.
PIA17200:
Dione with Rings and Shadows
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Add Image to Favorite List 2015-08-10 S Rings Cassini-Huygens
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Saturn's unusual appearance in this image from NASA's Cassini spacecraft is a result of the planet being imaged via an infrared filter. Infrared images can help scientists determine the location of clouds in the planet's atmosphere.
PIA18332:
Darkness Descending
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Add Image to Favorite List 2015-07-06 Prometheus Cassini-Huygens
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Saturn's moon Prometheus, seen here looking suspiciously blade-like, is captured by NASA's Cassini spacecraft near some of its sculpting in the F ring.
PIA18324:
Ring Slicer
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Add Image to Favorite List 2015-06-29 S Rings Cassini-Huygens
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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.
PIA18321:
Spirals in the D Ring
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Add Image to Favorite List 2015-05-18 Janus Cassini-Huygens
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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.
PIA18315:
Janus Stands Alone
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Add Image to Favorite List 2015-04-27 S Rings Cassini-Huygens
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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.
PIA18313:
Faint D Ring
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Add Image to Favorite List 2015-04-13 Mimas Cassini-Huygens
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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.
PIA18312:
Mimas by Saturnshine
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Add Image to Favorite List 2015-03-30 S Rings Cassini-Huygens
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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.
PIA18305:
20-20 Hindsight
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Add Image to Favorite List 2015-03-23 S Rings Cassini-Huygens
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Pandora, Prometheus, and Pan, seen here, from right to left, also appear to be holding some sort of convention in this image from NASA's Cassini spacecraft.
PIA18306:
Moon Convention
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Add Image to Favorite List 2015-03-16 S Rings Cassini-Huygens
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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.
PIA18308:
Groovy
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Add Image to Favorite List 2015-02-23 S Rings Cassini-Huygens
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Saturn's oblateness, the varying opacity of its rings and the shadows cast by those rings, sometimes creates elaborate and complicated patterns from NASA's Cassini's perspective.
PIA18303:
Cubist Saturn
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Add Image to Favorite List 2015-02-16 Janus Cassini-Huygens
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In reality, Janus and the rings both orbit Saturn and are only weakly connected to each other through their mutual gravitational tugs as seen by NASA's Cassini spacecraft.
PIA18304:
Janus the Jewel
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Add Image to Favorite List 2015-02-09 S Rings Cassini-Huygens
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Many color images are taken by NASA's Cassini spacecraft in red light so scientists can study the often subtle color variations of Saturn's rings. These variations may reveal clues about the chemical composition and physical nature of the rings.
PIA18301:
Study in Scarlet
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Add Image to Favorite List 2015-02-02 Epimetheus Cassini-Huygens
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Tiny Epimetheus is dwarfed by adjacent slivers of the A and F rings in this image from NASA's Cassini spacecraft.
PIA18302:
Deceptively Small
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Add Image to Favorite List 2015-01-26 S Rings Cassini-Huygens
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Two masters of their craft are caught at work shaping Saturn's rings captured by NASA's Cassini spacecraft. Pandora (upper right) sculpts the F ring. Meanwhile, Daphnis is busy holding open the Keeler gap (bottom center).
PIA18298:
The Shapers
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Add Image to Favorite List 2015-01-05 S Rings Cassini-Huygens
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What's that bright point of light in the outer A ring? It's a star, bright enough to be visible through the ring as seen by NASA's Cassini spacecraft.
PIA18297:
Wish Upon a Star
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Add Image to Favorite List 2014-12-22 S Rings Cassini-Huygens
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NASA's Cassini orbiter shows Saturn's main rings, seen here on their 'lit' face, appear much darker than normal. That's because they tend to scatter light back toward its source -- in this case, the Sun.
PIA18294:
Darkness
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Add Image to Favorite List 2014-12-08 S Rings Cassini-Huygens
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Although solid-looking in many images, NASA's Cassini orbiter shows that Saturn's rings are actually translucent. In this picture, we can glimpse the shadow of the rings on the planet through the A and C rings themselves, towards the lower right corner.
PIA18295:
Translucent Rings
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