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Add Image to Favorite List 2000-06-08 Io Voyager
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Perhaps the most spectacular of all the Voyager photos of Io is this mosaic obtained by NASA's Voyager 1 on March 5 at a range of 400,000 kilometers.
PIA02294:
Io 2x2 Mosaic
Full Resolution:     TIFF (5.675 MB)     JPEG (145.5 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Near Infrared Mapping Spectrometer
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Pele, one of Io's best-known volcanoes, was observed by NASA's Galileo spacecraft, during the flyby of Jupiter's moon Io on February 22, 2000.
PIA02560:
Temperature Map of Pele, Io
Full Resolution:     TIFF (1.376 MB)     JPEG (57.62 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Near Infrared Mapping Spectrometer
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This image shows the Chaac region, on Jupiter's moon Io, viewed by two instruments on NASA's spacecraft Galileo during the flyby on February 22, 2000. On the left is an image taken by Galileo's onboard camera.
PIA02559:
Sulphur Dioxide on the Chaac Region of Io
Full Resolution:     TIFF (145.7 kB)     JPEG (35.13 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Near Infrared Mapping Spectrometer
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Changes in the volcanoes on Jupiter's moon Io can be seen in these three views, taken by NASA's Galileo spacecraft during its three flybys of Io in October 1999, November 1999 and February 2000.
PIA02558:
Myriad of Hot Spots on Io
Full Resolution:     TIFF (56.56 kB)     JPEG (27.49 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Solid-State Imaging
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The margin of the lava flow field associated with the Prometheus volcanic plume on Jupiter's moon Io is seen in this image, acquired by NASA's Galileo spacecraft on February 22, 2000. The image has a resolution of 12 meters (39 feet) per picture element.
PIA02557:
Lava Flows and Ridged Plains at Prometheus, Io
Full Resolution:     TIFF (460.9 kB)     JPEG (76.71 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Solid-State Imaging
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This image, acquired by NASA's Galileo spacecraft on February 22, 2000, is the highest resolution image ever taken of Io. The resolution is 5.2 meters (18 feet) per picture element.
PIA02556:
Highest-Resolution Picture of Io
Full Resolution:     TIFF (471.2 kB)     JPEG (105.6 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Solid-State Imaging
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This mosaic of images taken by NASA's Galileo spacecraft on February 22, 2000 shows three mountains and two lava-filled depressions in the Shamshu region of Jupiter's moon Io. The dark oval feature is a depression that has been resurfaced by lava flows.
PIA02555:
Shamshu Mons and Patera, Io
Full Resolution:     TIFF (251 kB)     JPEG (83.46 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Solid-State Imaging
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This image from NASA's Galileo spacecraft shows one of many mountains on Jupiter's moon Io. The image was made by combining a recent high-resolution, black and white image with earlier low-resolution color data to provide a high-resolution, color view.
PIA02554:
Colorized View of Zal Region, Io
Full Resolution:     TIFF (564.4 kB)     JPEG (39.15 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Solid-State Imaging
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This stereo image of Jupiter's moon Io shows the topography of a region on Io that includes the Zal Patera feature and a mountain or plateau that borders it to the west. It was created by combining two different views taken by NASA's Galileo spacecraft.
PIA02553:
Stereo Image of Zal Patera and Neighboring Mountain, Io
Full Resolution:     TIFF (532.5 kB)     JPEG (23.59 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Solid-State Imaging
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This stereo image illustrates the topography of the Tvashtar Catena region on Jupiter's moon Io. It was created by combining two different views of Tvashtar taken by NASA's Galileo spacecraft on November 25, 1999 and February 22, 2000.
PIA02552:
Stereo Image of Tvashtar Catena, Io
Full Resolution:     TIFF (1.615 MB)     JPEG (96.08 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Solid-State Imaging
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Detail of one of the calderas, or collapsed volcanic craters, on Jupiter's moon Io, is seen in these images acquired on February 22, 2000by NASA's Galileo spacecraft. Taken from a distance of 700 to 800 kilometers (roughly 400 to 500 miles).
PIA02551:
Snapshots of Chaac: Io's Calderas Up Close
Full Resolution:     TIFF (215.1 kB)     JPEG (89.51 kB)
Add Image to Favorite List 2000-05-31 Io Galileo
Solid-State Imaging
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An active volcanic eruption on Jupiter's moon Io was captured in this image taken on February 22, 2000 by NASA's Galileo spacecraft. Tvashtar Catena, a chain of giant volcanic calderas, where an energetic eruption caught in action in November 1999.
PIA02550:
Ongoing Volcanic Eruption at Tvashtar Catena, Io
Full Resolution:     TIFF (2.248 MB)     JPEG (81.64 kB)
Add Image to Favorite List 2000-05-25 Io Voyager
VG ISS - Narrow Angle
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NASA's Voyager 1 took this narrow-angle camera image on 5 March 1979 from a distance of 69,000 kilometers. The feature shown is a volcanic caldera which may be actively spewing material into space (dark gray fuzz near upper-right part of the caldera rim).
PIA02288:
Io Caldera
Full Resolution:     TIFF (75.66 kB)     JPEG (9.196 kB)
Add Image to Favorite List 2000-05-25 Io Voyager
VG ISS - Narrow Angle
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This picture of Io, Jupiter's innermost Galilean satellite, was taken by NASA's Voyager 1 on the morning of March 5, 1979, during the closest approach to this satellite.
PIA02280:
Io
Full Resolution:     TIFF (591.1 kB)     JPEG (155.9 kB)
Add Image to Favorite List 2000-05-25 Io Voyager
VG ISS - Narrow Angle
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NASA's Voyager 1 took this narrow-angle camera image on 5 March 1979 from a distance of 450,000 kilometers. At this geometry, the camera looks straight down through a volcanic plume at one of Io's most active volcanos, Pele.
PIA02287:
Io Pele Plume
Full Resolution:     TIFF (103 kB)     JPEG (15.36 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Near Infrared Mapping Spectrometer
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This image compares temperatures at the volcano Loki, the most powerful volcano on Io, seen by the photopolarimeter-radiometer instrument onboard NASA's Galileo spacecraft during its October 1999 flyby of Jupiter's moon Io, and its February 2000 flyby.
PIA02549:
Temperature Comparison at Loki
Full Resolution:     TIFF (291.5 kB)     JPEG (133.3 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Near Infrared Mapping Spectrometer
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This is the first-ever map of temperatures over large areas of Io's night-side, obtained with the photopolarimeter-radiometer instrument onboard NASA's Galileo spacecraft during flybys of Io in November 1999 and February 2000.
PIA02548:
Temperature Map of Io's Night Side
Full Resolution:     TIFF (924.6 kB)     JPEG (82.66 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Photopolarimeter-Radiometer
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Ideas about the role of sulfur in volcanoes on Jupiter's moon Io are illustrated. Sulfur gas consisting of pairs of sulfur atoms (S2), detected above Io's volcano Pele by the Hubble Space Telescope, is ejected from the hot vents of Io's volcanoes.
PIA02547:
The Role of Sulfur in Io's Volcanoes
Full Resolution:     TIFF (1.611 MB)     JPEG (75.39 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Photopolarimeter-Radiometer
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This image depicts the discovery of sulfur gas in the plume of the Pele volcano on Jupiter's moon Io, as seen by the Hubble Space Telescope in October 1999, during a flyby of Io by NASA's Galileo spacecraft.
PIA02546:
Sulfur Gas in Pele's Plume
Full Resolution:     TIFF (544.7 kB)     JPEG (42.15 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Solid-State Imaging
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NASA's Galileo spacecraft caught this volcanic eruption in action on Jupiter's moon Io on November 25, 1999. This mosaic shows Tvashtar Catena, a chain of calderas, in enhanced color.
PIA02545:
Eruption at Tvashtar Catena, Io, in Color
Full Resolution:     TIFF (1.946 MB)     JPEG (86.57 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Near Infrared Mapping Spectrometer
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The Culann Patera volcano on Jupiter's moon Io was observed by the near-infrared mapping spectrometer instrument onboard NASA's Galileo spacecraft during its Io flyby on Nov. 25, 1999.
PIA02544:
Culann Patera/NIMS
Full Resolution:     TIFF (478.6 kB)     JPEG (16.82 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Near Infrared Mapping Spectrometer
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The Prometheus region of Jupiter's moon Io was imaged by NASA's Galileo spacecraft in 1999. The maps made from spectrometer data show the interplay between hot silicates on the surface and sulfur dioxide frost.
PIA02543:
Prometheus Silicates/Sulfur dioxide/NIMS
Full Resolution:     TIFF (4.722 MB)     JPEG (347.4 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Near Infrared Mapping Spectrometer
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Volcanic 'hot spots' are seen in this color temperature map of the Prometheus volcano on Jupiter's moon Io created with data obtained by NASA's Galileo and Voyager spacecraft.
PIA02542:
Prometheus/NIMS
Full Resolution:     TIFF (1.242 MB)     JPEG (29.71 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Near Infrared Mapping Spectrometer
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This image of Loki Patera on Jupiter's volcanic moon Io shows data taken by the near-infrared mapping spectrometer onboard NASA's Galileo spacecraft during its Io flyby on Oct. 10, 1999.
PIA02541:
Loki Patera/NIMS
Full Resolution:     TIFF (639.3 kB)     JPEG (78.9 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Solid-State Imaging
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NASA's Galileo spacecraft acquired the images in this mosaic of Hi-iaka Patera (the irregularly shaped, dark depression at the center of the image) and two nearby mountains on November 25, 1999 during its 25th orbit.
PIA02540:
Rifting at Hi'iaka Patera, Io?
Full Resolution:     TIFF (156.2 kB)     JPEG (61.54 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Solid-State Imaging
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NASA's Galileo spacecraft observed this volcano, Emakong Patera, a large, dark caldera from which numerous bright flows extend out in all directions. Unlike many of the other volcanoes on Io, high-temperature material has never been observed at Emakong.
PIA02539:
Bright Lava Flows at Emakong Patera, Io
Full Resolution:     TIFF (247.5 kB)     JPEG (105.2 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Solid-State Imaging
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These images illustrate just how quickly the surface of Io is changing. The image on the left shows lava flows from the volcano Prometheus as seen by NASA's Galileo spacecraft on October 11, 1999 on its 24th orbit (I24).
PIA02538:
Changes Observed in Just 4.5 Months at Prometheus, Io
Full Resolution:     TIFF (162.1 kB)     JPEG (69.06 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Solid-State Imaging
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This mosaic of images shows a portion of a long lava flow that appeared during the 17 years between flybys of Io by NASA's Voyager and Galileo spacecraft. Images are high resolution and were acquired by Galileo on October 11, 1999 during its 24th orbit.
PIA02537:
Lava Flows at Zamama, Io
Full Resolution:     TIFF (75.33 kB)     JPEG (39.4 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Solid-State Imaging
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This very high resolution mosaic shows the complex collection of lava flows, pits, domes, and possibly rafted plates of lava on Io. The images were taken by NASA's Galileo spacecraft on October 11, 1999 during its 24th orbit.
PIA02536:
1997 Lava Flows Near Pillan Patera, Io
Full Resolution:     TIFF (366.3 kB)     JPEG (169.6 kB)
Add Image to Favorite List 2000-05-18 Io Galileo
Solid-State Imaging
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Culann Patera, one of the most colorful volcanic centers on Io, is the centerpiece of this mosaic of the best high-resolution, color view of Io yet returned by NASA's Galileo spacecraft.
PIA02535:
Culann Patera, Io, in False Color
Full Resolution:     TIFF (2.192 MB)     JPEG (105.6 kB)
Add Image to Favorite List 2000-04-19 Io Galileo
Solid-State Imaging
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Volcanic calderas, lava flows and cliffs are seen in this false color image of a region near the south pole of Jupiter's volcanic moon Io, created by combining a black and white image taken by NASA's Galileo spacecraft with lower resolution color images.
PIA02534:
Terrain near Io's South Pole, in Color
Full Resolution:     TIFF (1.812 MB)     JPEG (84.44 kB)
Add Image to Favorite List 2000-04-19 Io Galileo
Solid-State Imaging
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Lava flows similar to those found in Hawaii are seen in the black and white image at top, taken by NASA's Galileo spacecraft. It is one of the highest resolution images ever obtained of Jupiter's volcanic moon Io.
PIA02533:
Highest Resolution of Lava Flows on Io
Full Resolution:     TIFF (1.276 MB)     JPEG (90.21 kB)
Add Image to Favorite List 2000-03-23 Io Voyager
VG ISS - Narrow Angle
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NASA's Voyager 2 took this picture of Io July 10, 1979, from a range of 1.2 million kilometers (750,000 miles).
PIA02254:
Io - Crescent with Plumes
Full Resolution:     TIFF (99.45 kB)     JPEG (47.51 kB)
Add Image to Favorite List 2000-03-23 Io Voyager
VG ISS - Narrow Angle
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This picture of part of the southern hemisphere of Io was taken by NASA's Voyager 1 at a range of 74,675 km and shows an area at the terminator, very close to the edge of the disk as viewed from the spacecraft.
PIA02250:
Io - Southern Hemisphere
Full Resolution:     TIFF (404.1 kB)     JPEG (37.77 kB)
Add Image to Favorite List 2000-03-23 Io Voyager
VG ISS - Narrow Angle
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This image was acquired by NASA's Voyager 1 as it approached close passage by the south pole of Io, the innermost of the four large Galilean satellites.
PIA02249:
Io - South Pole
Full Resolution:     TIFF (484.7 kB)     JPEG (112.2 kB)
Add Image to Favorite List 2000-03-23 Io Voyager
VG ISS - Narrow Angle
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This photo of Io, innermost of the four large Galilean satellites of Jupiter, was taken through an ultraviolet filter by the narrow angle camera of NASA's Voyager 1.
PIA02248:
Io
Full Resolution:     TIFF (323.5 kB)     JPEG (26.52 kB)
Add Image to Favorite List 2000-03-06 Io Galileo
Solid-State Imaging
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The Zal Patera region of Jupiter's volcanic moon Io is shown in this combination of high-resolution black and white images taken by NASA's Galileo spacecraft on November 25, 1999 and lower resolution color images taken by Galileo on July 3, 1999.
PIA02527:
Zal Patera, Io, in color
Full Resolution:     TIFF (2.005 MB)     JPEG (75.34 kB)
Add Image to Favorite List 2000-03-06 Io Galileo
Solid-State Imaging
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This picture of Jupiter's volcanic moon Io combines high-resolution black and white images taken by NASA's Galileo spacecraft on October 10, 1999, with lower resolution color images taken by Galileo on July 3, 1999.
PIA02526:
Ionian Mountains and Calderas, in Color
Full Resolution:     TIFF (3.203 MB)     JPEG (170.4 kB)
Add Image to Favorite List 2000-01-04 Io Voyager
VG ISS - Narrow Angle
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This picture of Io captured by NASA's Voyager 1 was taken on the morning of March 5 at a range of 75,445 kilometers.
PIA02232:
Io - High Res Limb
Full Resolution:     TIFF (292.4 kB)     JPEG (37.1 kB)
Add Image to Favorite List 2000-01-04 Io Voyager
VG ISS - Narrow Angle
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This picture of Io was taken by NASA's Voyager 1 on the morning of March 5, 1979 at a range of about 92,000 km (55,000 mi.).
PIA02231:
Io - high resolution
Full Resolution:     TIFF (407.9 kB)     JPEG (28.7 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
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Like a terrestrial weather map, this map made by the photopolarimeter-radiometer onboard NASA's Galileo spacecraft shows how temperatures vary across the surface of Jupiter's moon Io. In this case temperatures are due to volcanic activity, not weather.
PIA02524:
Galileo PPR Temperature Maps of Loki in October 1999
Full Resolution:     TIFF (140.3 kB)     JPEG (61.33 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
Solid-State Imaging
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This mosaic of images collected by NASA's Galileo spacecraft on Thanksgiving Day, November 25, 1999 shows a fountain of lava spewing above the surface of Jupiter's moon Io.
PIA02525:
Interpreted Lava Fountains on Io
Full Resolution:     TIFF (1.3 MB)     JPEG (124.8 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
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These false-color images of Io and Jupiter were taken with the NASA Infrared Telescope Facility at Mauna Kea, Hawaii, as part of a campaign to support closeup Io observations by NASA's Galileo spacecraft.
PIA02523:
Earth-based images of the Fall 1999 Loki Eruption
Full Resolution:     TIFF (162.4 kB)     JPEG (13.14 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
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This false-color infrared image of the Sunlit disk of Jupiter's moon Io was taken at the NASA Infrared Telescope Facility at Mauna Kea, Hawaii, a few hours after a November 25, 1999 close Io flyby by NASA's Galileo spacecraft.
PIA02522:
Earth-Based Observations of a Fire Fountain on Io
Full Resolution:     TIFF (58.53 kB)     JPEG (12.82 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
Near Infrared Mapping Spectrometer
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A very active volcano on Jupiter's moon Io, probably composed of erupting lava fountains, was seen by NASA's Galileo spacecraft.
PIA02521:
Eruption from High Latitude Caldera Viewed by the Near-Infrared Mapping Spectrometer (NIMS)
Full Resolution:     TIFF (482.4 kB)     JPEG (46.98 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
Solid-State Imaging
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This image taken by NASA's Galileo spacecraft during its close flyby of Jupiter's moon Io shows some curious mountains. The Sun is illuminating the scene from the left, and because it is setting, exaggerates the shadows cast by the mountains.
PIA02520:
Mountains on Io
Full Resolution:     TIFF (267.5 kB)     JPEG (72.92 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
Solid-State Imaging
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This mosaic of images collected by NASA's Galileo spacecraft on Thanksgiving Day, November 25, 1999 shows a fountain of lava spewing above the surface of Jupiter's moon Io.
PIA02519:
Lava Fountains on Io
Full Resolution:     TIFF (139.9 kB)     JPEG (56.66 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
Solid-State Imaging
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This image of Jupiter's moon Io, taken by NASA's Galileo spacecraft on November 25, 1999, shows a bright lava flow with a distinct dark channel in the middle.
PIA02518:
Bright Channelized Lava Flows on Io
Full Resolution:     TIFF (1.55 MB)     JPEG (115.7 kB)
Add Image to Favorite List 1999-12-17 Io Galileo
Solid-State Imaging
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This pair of images depicts the magic worked by JPL engineers to repair radiation damage to images taken by NASA's Galileo spacecraft camera during an October 10 close flyby of Jupiter's volcanic moon Io.
PIA02517:
Reconstruction of Scrambled Io Images
Full Resolution:     TIFF (245.3 kB)     JPEG (96.38 kB)
Add Image to Favorite List 1999-11-19 Io Galileo
Near Infrared Mapping Spectrometer
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This image is the highest-resolution thermal, or heat image, ever made of Amirani, a large volcano on Jupiter's moon Io. It was taken on Oct. 10, 1999, by NASA's Galileo spacecraft. Amirani is on the side of Io that permanently faces away from Jupiter.
PIA02516:
Galileo NIMS Observes Amirani
Full Resolution:     TIFF (274.2 kB)     JPEG (34.6 kB)
Add Image to Favorite List 1999-11-19 Io Galileo
Near Infrared Mapping Spectrometer
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This image shows the region around the Prometheus volcano on Jupiter's moon Io. It was observed by NASA's Galileo spacecraft in 1996 as it was flying away from a close approach to Io.
PIA02515:
Io's Prometheus Regions as Viewed by Galileo NIMS
Full Resolution:     TIFF (870 kB)     JPEG (76.75 kB)
Add Image to Favorite List 1999-11-19 Io Galileo
Near Infrared Mapping Spectrometer
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This image shows Loki, the most powerful volcano in the solar system, which has been constantly active on Jupiter's moon Io. NASA's Galileo spacecraft took these images during its approach to Io on October 10, 1999.
PIA02514:
Loki as viewed by Galileo NIMS
Full Resolution:     TIFF (638.9 kB)     JPEG (92.45 kB)
Add Image to Favorite List 1999-11-19 Io Galileo
Solid-State Imaging
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Unusual mountains on Jupiter's moon Io are shown in these images that were captured by NASA's Galileo spacecraft during its close Io flyby. The top four pictures show four different mountains at resolutions of about 500 meters per picture element.
PIA02513:
Collapsing Mountains on Io
Full Resolution:     TIFF (1.291 MB)     JPEG (251.9 kB)
Add Image to Favorite List 1999-11-19 Io Galileo
Solid-State Imaging
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This collage of images shows the dizzying rate of geologic activity at one of the many erupting volcanoes on Jupiter's moon Io, as viewed by NASA's Galileo spacecraft during the closest-ever Io flyby on October 10, 1999.
PIA02512:
Ongoing Geologic Activity at Prometheus Volcano, Io
Full Resolution:     TIFF (1.409 MB)     JPEG (94.2 kB)
Add Image to Favorite List 1999-11-19 Io Galileo
Solid-State Imaging
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The volcano Pele glows in the night in this close-up image of Jupiter's moon Io, obtained by NASA's Galileo spacecraft in the closest-ever Io flyby on October 10, 1999. Only surfaces hotter than 600 degrees Celsius are visible in this image.
PIA02511:
Pele's Hot Caldera Margin
Full Resolution:     TIFF (290.8 kB)     JPEG (44.06 kB)
Add Image to Favorite List 1999-11-19 Io Galileo
Solid-State Imaging
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Brightly glowing lava from the volcano Pele is seen in this image taken by NASA's Galileo spacecraft as it receded from its close flyby of Jupiter's moon Io in October, 1999.
PIA02510:
Pele's Glow
Full Resolution:     TIFF (1.391 MB)     JPEG (42.92 kB)
Add Image to Favorite List 1999-11-04 Io Galileo
Near Infrared Mapping Spectrometer
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The active volcano Prometheus on Jupiter's moon Io was imaged by NASA's Galileo spacecraft during the close flyby of Io on Oct.10, 1999. The spectrometer can detect active volcanoes on Io by measuring their heat in the near-infrared wavelengths.
PIA02509:
Galileo's Near-Infrared Mapping Spectrometer Detects Active Lava Flows at Prometheus Volcano, Io
Full Resolution:     TIFF (67.96 kB)     JPEG (35 kB)
Add Image to Favorite List 1999-11-04 Io Galileo
Solid-State Imaging
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This is a high-resolution image of part of Prometheus, an active volcano on Jupiter's volcanic moon Io. The image was taken by NASA's Galileo spacecraft on October 10, 1999, during its close flyby of Io.
PIA02508:
Galileo Discovers Caldera at Prometheus Volcano, Io
Full Resolution:     TIFF (5.342 MB)     JPEG (193.5 kB)
Add Image to Favorite List 1999-10-25 Io Galileo
Solid-State Imaging
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The highest resolution image ever of Jupiter's volcanic moon Io, (the black and white image at top), was taken by NASA's Galileo spacecraft on October 10, 1999, from an altitude of 617 kilometers (417 miles).
PIA02507:
Highest Resolution Image Ever Obtained of Io
Full Resolution:     TIFF (227.4 kB)     JPEG (51.2 kB)
Add Image to Favorite List 1999-10-14 Io Voyager
VG ISS - Narrow Angle
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Voyager 2 took this picture of Io on the evening of July 9, 1979, from a range of 1.2 million kilometers. On the limb of Io are two blue volcanic eruption plumes about 100 kilometers high.
PIA01362:
Io
Full Resolution:     TIFF (215.9 kB)     JPEG (16.02 kB)
Add Image to Favorite List 1999-10-08 Io Galileo
Solid-State Imaging
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This pair of volcanic features on Jupiter's moon Io represents the longest active lava flow known to exist in our solar system. This image, one of the highest resolution pictures ever taken of Io, was obtained by NASA s Galileo spacecraft on July 3, 1999.
PIA02506:
Amirani-Maui: Longest Known Active Lava Flow in the Solar System
Full Resolution:     TIFF (392.2 kB)     JPEG (21.24 kB)
Add Image to Favorite List 1999-10-08 Io Galileo
Solid-State Imaging
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The volcano called Prometheus, found on Jupiter's moon Io, could be called the Old Faithful of the outer solar system, because its volcanic plume has been visible every time it has been observed since 1979. Image obtained by NASA's Galileo spacecraft.
PIA02505:
Close-up of Prometheus, Io (color)
Full Resolution:     TIFF (360.9 kB)     JPEG (17.74 kB)
Add Image to Favorite List 1999-10-08 Io Galileo
Solid-State Imaging
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A volcano named Zamama on Jupiter's moon Io has recently changed in appearance as seen in this pair of images of Io acquired by NASA's Galileo spacecraft as it approached Io in preparation for a close flyby.
PIA02504:
Close-up of Zamama, Io (Color)
Full Resolution:     TIFF (948.9 kB)     JPEG (32.3 kB)
Add Image to Favorite List 1999-10-08 Io Galileo
Solid-State Imaging
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This set of four images, taken by NASA's Galileo spacecraft, shows a sequence of volcanic activity on Jupiter's moon Io over the last two years.
PIA02503:
Migrating Volcanic Plumes on Io
Full Resolution:     TIFF (122.8 kB)     JPEG (21.5 kB)
Add Image to Favorite List 1999-10-08 Io Galileo
Solid-State Imaging
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A plume of gas and particles is ejected some 100 kilometers (about 60 miles) above the surface of Jupiter's volcanic moon Io in this color image, recently taken by NASAšs Galileo spacecraft.
PIA02502:
Masubi Plume on Io
Full Resolution:     TIFF (289.4 kB)     JPEG (14 kB)
Add Image to Favorite List 1999-10-08 Io Galileo
Solid-State Imaging
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Dramatic changes have occurred at the volcanically active Pillan Patera region of Jupiter's moon Io over the past three years, as seen in this set of three images taken by NASAšs Galileo spacecraft.
PIA02501:
Changes at Pillan Patera
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Add Image to Favorite List 1999-08-31 Io Voyager
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This photograph of Jupiter's satellite Io taken by NASA's Voyager 1 shows what appears to be a volcanic caldera that is venting gasses (the bright blue patch at left center).
PIA00021:
Volcanic Caldera on Io
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Add Image to Favorite List 1999-08-31 Io Voyager
VG ISS - Narrow Angle
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This color picture of Io, Jupiter's innermost Galilean satellite, was taken by NASA's Voyager 1 on the morning of March 5, 1979 at a range of 128,500 kilometers (77,100 miles).
PIA00361:
Io Surface Deposits and Volcano
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Add Image to Favorite List 1999-08-27 Io Galileo
Solid-State Imaging
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NASA's Galileo spacecraft acquired its highest resolution images of Jupiter's volcanic moon Io on July 3, 1999 during its closest pass by Io since it entered orbit around Jupiter in December 1995.
PIA02319:
Closeups of Io (false color)
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Add Image to Favorite List 1999-08-27 Io Galileo
Solid-State Imaging
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NASA's Galileo spacecraft acquired its highest resolution images of Jupiter's moon Io on 3 July 1999 during its closest pass to Io since orbit insertion in late 1995.
PIA02309:
Global image of Io (false color)
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Add Image to Favorite List 1999-08-27 Io Galileo
Solid-State Imaging
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NASA's Galileo spacecraft acquired its highest resolution images of Jupiter's moon Io on 3 July 1999 during its closest pass to Io since orbit insertion in late 1995.
PIA02308:
Global image of Io (true color)
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Add Image to Favorite List 1999-08-13 Io Voyager
VG ISS - Narrow Angle
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This NASA Voyager 1 view of an equatorial region near longitude 300 degrees shows several large surface flows that originate in volcanic craters or calderas.
PIA02201:
Io
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Add Image to Favorite List 1999-07-23 Io Voyager
VG ISS - Narrow Angle
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This NASA Voyager 2 picture of Io was taken in ultraviolet light on the evening of July 4, 1979, at a range of 4.7 million kilometers (2.9 million miles).
PIA01989:
Io
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Add Image to Favorite List 1999-07-16 Io Voyager
VG ISS - Narrow Angle
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The trailing face of Jupiter's inner satellite Io is shown in this photo taken by NASA's Voyager 1 on March 3, 1979, from a distance of 1.7 million miles.
PIA01986:
Io - Jupiter's inner satellite
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Add Image to Favorite List 1999-06-16 Io Voyager
VG ISS - Narrow Angle
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VOLCANIC EXPLOSION ON IO: NASA's Voyager 1 acquired this image of Io on March 4 at 5:30 p.m. (PST) about 11 hours before closest approach to the Jupiter moon.
PIA01971:
Volcanic Explosion on Io
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Add Image to Favorite List 1999-05-21 Io Hubble Space Telescope
WFPC2
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While hunting for volcanic plumes on Io, NASA's Hubble Space Telescope captured these images of the volatile moon sweeping across the giant face of Jupiter.
PIA01540:
Hubble Clicks Images of Io Sweeping Across Jupiter
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Add Image to Favorite List 1999-05-08 Io Voyager
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NASA'S Voyager 2 shows that Io's volcanos continually resurface it, so that any impact craters have disappeared.
PIA01530:
Volcanic Activity on Io
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Add Image to Favorite List 1999-03-13 Io Voyager
VG ISS - Narrow Angle
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This picture of Io, the innermost Galilean satellite, was taken by NASA's Voyager 1 on the morning of March 5, 1979 at a range of 377,000 kilometers (226,200 miles). The smallest features visible are about 10 kilometers (6 miles) across.
PIA01514:
Io Surface Deposits and Volcanic Craters
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Add Image to Favorite List 1999-01-18 Io Galileo
Solid-State Imaging
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These views of the key volcanic centers on Jupiter's moon, Io, merge color data with higher resolution mosaics. Images were obtained with the green, violet, and 756 micrometer filters of the Solid State Imaging (SSI) system on NASA's Galileo spacecraft.
PIA01668:
Key Volcanic Centers on Io
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Add Image to Favorite List 1999-01-18 Io Galileo
Solid-State Imaging
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This global view of Jupiter's moon, Io, was obtained during the tenth orbit of Jupiter by NASA's Galileo spacecraft. Io, which is slightly larger than Earth's moon, is the most volcanically active body in the solar system.
PIA01667:
Io's Pele Hemisphere After Pillan Changes
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Add Image to Favorite List 1999-01-18 Io Galileo
Solid-State Imaging
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This global mosaic shows the highest resolution Galileo images available of Jupiter's moon, Io. Images were obtained by the Solid State Imaging (SSI) system on NASA's Galileo spacecraft.
PIA01663:
Highest Resolution Mosaic of Io
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Add Image to Favorite List 1998-12-07 Io Galileo
Solid-State Imaging
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These four views of Jupiter's moon Io clearly show airborne plumes of gas and dust from two of Io's active volcanoes, Zamama and Prometheus. The bottom row consists of enlargements of the plume areas. Images captured by NASA's Galileo spacecraft.
PIA01652:
Sequence Showing Active Volcanic Plumes on Io
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Add Image to Favorite List 1998-12-05 Io Voyager
VG ISS - Narrow Angle
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This picture shows a special color reconstruction of one of the erupting volcanos on Io discovered by NASA's Voyager 1 during its encounter with Jupiter on the 4th and 5th of March, 1979.
PIA01368:
Jupiter's Moon Io
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Add Image to Favorite List 1998-11-02 Io Voyager
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The South Polar region of Jupiter's moon Io, seen by NASA's Voyager 1 as it passed beneath in the early 1980s.
PIA01485:
South Polar Region of Io
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Add Image to Favorite List 1998-10-30 Jupiter Voyager
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Jupiter and its four planet-size moons, called the Galilean satellites, were photographed in early March, 1980, by NASA's Voyager 1 and assembled into this collage. They are not to scale but are in their relative positions
PIA01481:
Jupiter System Montage
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Add Image to Favorite List 1998-10-13 Io Galileo
Solid-State Imaging
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This view of Jupiter's moon Io in eclipse was acquired by NASA's Galileo spacecraft while the moon was in Jupiter's shadow. Gases above the satellite's surface produced a ghostly glow that could be seen at visible wavelengths (red, green, and violet).
PIA01637:
Io's Aurorae
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Add Image to Favorite List 1998-10-13 Io Galileo
Solid-State Imaging
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Views of Jupiter's moon Io in the eclipse of the large planet's shadow are color coded so blue to yellow to red represents increasing brightness. Image from NASA's Galileo spacecraft indicate that the lava at Pillan Patera exceeded 1,700 degrees kelvin.
PIA01635:
Io in Eclipse reveals High Temperature Hot Spots
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Add Image to Favorite List 1998-09-15 Io Galileo
Solid-State Imaging
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Composite view of Amalthea and Io at the same scale. The visible part of Amalthea is about 150 kilometers across. The Amalthea and Io composites were obtained by the solid state imaging (SSI) camera on NASA's Galileo spacecraft on different orbits.
PIA01626:
Comparison of Amalthea to Io
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Add Image to Favorite List 1998-07-02 Io Galileo
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During its 14th orbit of Jupiter in March 29, 1998, NASA's Galileo spacecraft captured an image of Jupiter's moon, Io, that has the same lighting geometry that will exist during Io's close Io flyby on October 11, 1999 (the 24th orbit).
PIA01605:
Io imaging during Galileo's 24th orbit
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Add Image to Favorite List 1998-07-02 Io Galileo
Solid-State Imaging
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This is the highest resolution color picture taken so far of Jupiter's volcanic moon Io by NASA's Galileo spacecraft. The fiery satellite is seen against a backdrop of Jupiter's cloud tops, which appear blue in this false-color composite.
PIA01604:
Close-up color view of Io
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Add Image to Favorite List 1998-06-08 Io Voyager
VG ISS - Narrow Angle
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This is a multispectral image cube of Io from NASA's Voyager 2 images, simple cylindrical projection.
PIA00401:
Io: Cylindrical Projection
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Add Image to Favorite List 1998-06-04 Io Voyager
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Io's volcanic plains are shown in this image from NASA's Voyager 1 taken in 1998. Also visible are numerous volcanic calderas and two large mountains (Euboea Montes, just above 

center, and Haemus Montes, at lower left).
PIA00328:
Io, Showing Volcanic Plains and Mountains
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Add Image to Favorite List 1998-06-04 Io Voyager
Imaging Science Subsystem
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This archival image mosaic from NASA's Voyager 1 shows Io's south polar region. The South Pole is near the terminator (line between daylight and night) at right center. Haemus Mons, a 10-km high (32,000 foot) mountain is at bottom.
PIA00327:
Io, the South Polar Region
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Add Image to Favorite List 1998-06-04 Io Voyager
Imaging Science Subsystem
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Io's volcanic plains are shown in this archival image from NASA's Voyager 1, which spans an area about 1030 km (640 miles) from left to right. Numerous volcanic calderas and lava flows are visible.
PIA00324:
Volcanic Plains of Io Near Galai Patera
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Add Image to Favorite List 1998-06-04 Io Voyager
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The eruption of Pele on Jupiter's moon Io. The volcanic plume rises 300 kilometers above the surface in an umbrella-like shape. This image is from NASA's Voyager 1.
PIA00323:
Eruption of Pele
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Add Image to Favorite List 1998-06-04 Io Voyager
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Io's volcanic plains are shown in this image mosaic from NASA's Voyager 1. Also visible are numerous volcanic calderas and lava flows. Ra Patera with its multihued lava flows is below and right of the mosaic's center.
PIA00321:
Io, the Ra Patera, Mazda Catena, and Gibil Patera Area
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Add Image to Favorite List 1998-06-04 Io Voyager
Imaging Science Subsystem
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A huge area of Io's volcanic plains is shown in this archival image mosaic from NASA's Voyager 1. Numerous volcanic calderas and lava flows are visible here. Loki Patera, an active lava lake, is the large shield-shaped black feature.
PIA00320:
Loki Patera
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Add Image to Favorite List 1998-06-04 Io Voyager
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Io's volcanic plains are shown in NASA's Voyager 1 image mosaic which covers the area roughly from latitude 60 deg N. to latitude 60 deg S. and longitude 100-345. Numerous volcanic calderas, lava flows, and volcanic eruption plumes are visible here.
PIA00319:
Global Mercator Mosaic
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Add Image to Favorite List 1998-06-04 Io Voyager
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NASA's Voyager 1 computer color mosaics, shown in approximately natural color and in Lambertian equal-area projections, show the Eastern (left) and Western (right) hemispheres of Io.
PIA00318:
Io Shown in Lambertian Equal Area Projection and in Approximately Natural Color
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Add Image to Favorite List 1998-05-08 Io Galileo
Solid-State Imaging
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In this family portrait the four largest moons of Jupiter are shown to scale in increasing distance from Jupiter are (left to right) Io, Europa, Ganymede, and Callisto. This image was taken by NASA's Galileo in November, 1997.
PIA01400:
The Galilean Satellites
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