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Add Image to Favorite List 2007-04-02 Io Galileo
Voyager
Solid-State Imaging
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Io in Motion
PIA09257:
Io in Motion Animation Icon
Full Resolution:     TIFF (125.1 MB)     JPEG (3.431 MB)
Add Image to Favorite List 2002-12-06 Io Galileo
Solid-State Imaging
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A field of bright lava flows next to a shield volcano could be a source of recent sulfur volcanism on Io, as detected by instruments aboard NASA's Galileo spacecraft.
PIA03887:
Potential Source of Sulfur Flow on Io
Full Resolution:     TIFF (22.3 MB)     JPEG (947.9 kB)
Add Image to Favorite List 2001-02-23 Io Galileo
Solid-State Imaging
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These images from NASA's Galileo spacecraft show changes in the largest active field lava flows in the solar system, the Amirani lava flow on Jupiter's moon Io. Scientists have identified 23 distinct new flows by comparing the two images.
PIA02585:
Amirani's Big Lava Flow on Io
Full Resolution:     TIFF (12.55 MB)     JPEG (619.1 kB)
Add Image to Favorite List 2007-10-09 Io New Horizons
LEISA
LORRI
MVIC
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This is a montage of New Horizons images of Jupiter and its volcanic moon Io, taken during the spacecraft's Jupiter flyby in early 2007.
PIA10102:
Jupiter-Io Montage
Full Resolution:     TIFF (29.19 MB)     JPEG (232.7 kB)
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)
Full Resolution:     TIFF (17.09 MB)     JPEG (908.3 kB)
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)
Full Resolution:     TIFF (17.28 MB)     JPEG (789.8 kB)
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
Full Resolution:     TIFF (8.014 MB)     JPEG (297.8 kB)
Add Image to Favorite List 2007-05-01 Io New Horizons
LEISA
LORRI
MVIC
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This montage demonstrates New Horizons' ability to observe the same target in complementary ways using its diverse suite of instruments.
PIA09358:
Io Through Different 'Eyes'
Full Resolution:     TIFF (18.23 MB)     JPEG (289.4 kB)
Add Image to Favorite List 2007-05-01 Io New Horizons
LORRI
Solid-State Imaging
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Io Surface Changes
PIA09355:
Io Surface Changes
Full Resolution:     TIFF (18.23 MB)     JPEG (261.5 kB)
Add Image to Favorite List 1999-05-21 Io Hubble Space Telescope
WFPC2
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Hubble Clicks Images of Io Sweeping Across Jupiter
PIA01540:
Hubble Clicks Images of Io Sweeping Across Jupiter
Full Resolution:     TIFF (6.217 MB)     JPEG (285.7 kB)
Add Image to Favorite List 2001-12-10 Io Galileo
Solid-State Imaging
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Clues about how lava spreads great distances on Jupiter's volcanic moon Io come from high-resolution views taken by NASA's Galileo spacecraft of a lava channel flowing out of Emakong Patera near Io's equator.
PIA02598:
Lava Channel at Io's Emakong Patera
Full Resolution:     TIFF (12.18 MB)     JPEG (1.129 MB)
Add Image to Favorite List 2002-12-06 Io Galileo
Solid-State Imaging
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Repeated flybys of Io by NASA's Galileo spacecraft have allowed scientists to develop an understanding of Io's Tohil-Culann region of interconnected volcanoes and mountains.
PIA03885:
Io's Culann-Tohil Region in Color
Full Resolution:     TIFF (14.78 MB)     JPEG (594.4 kB)
Add Image to Favorite List 1997-12-18 Io Galileo
Solid-State Imaging
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Cutaway view of the possible internal structure of Io. The surface of the satellite is a mosaic of images obtained in 1979 by NASA's Voyager spacecraft.
PIA01129:
Interior of Io
Full Resolution:     TIFF (8.285 MB)     JPEG (579.6 kB)
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
Full Resolution:     TIFF (8.268 MB)     JPEG (268 kB)
Add Image to Favorite List 1997-09-07 Io Galileo
Solid-State Imaging
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Three views of the full disk of Jupiter's volcanic moon, Io, each shown in natural and enhanced color. These three views, taken NASA's Galileo in late June 1996, show about 75 percent of Io's surface.
PIA00715:
Full Disk Views of Io (Natural and Enhanced Color)
Full Resolution:     TIFF (7.555 MB)     JPEG (204.3 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 1997-09-07 Io Galileo
Solid-State Imaging
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Five color views of Jupiter's moon Io, as seen by NASA's Galileo spacecraft camera, were taken between the 25th and the 29th of June, 1996
PIA00491:
Five Color Views of Io
Full Resolution:     TIFF (4.97 MB)     JPEG (155.9 kB)
Add Image to Favorite List 1998-03-26 Io Galileo
Near Infrared Mapping Spectrometer
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NASA's Galileo spacecraft observed Io on nearly every orbit as part of a program monitoring the level of volcanic activity on this moon. Io is the most volcanically active body in the Solar System.
PIA00899:
New Hot Spot on Io Discovered by NIMS During Orbit C9
Full Resolution:     TIFF (783.9 kB)     JPEG (130.5 kB)
Add Image to Favorite List 1997-09-07 Io Galileo
Solid-State Imaging
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Four views of the hemisphere of Io which faces Jupiter showing changes seen on June 27th, 1996 by NASA's Galileo spacecraft as compared to views seen by the Voyager spacecraft during the 1979 flybys.
PIA00712:
Resurfacing of the Jupiter-facing hemisphere of Io
Full Resolution:     TIFF (4.461 MB)     JPEG (189.4 kB)
Add Image to Favorite List 1997-09-07 Io Galileo
Solid-State Imaging
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Volcanic hot spots and auroral emissions glow on the darkside of Jupiter's moon Io in the image at left. The image was taken by the camera onboard NASA's Galileo spacecraft on 29 June, 1996 UT while Io was in Jupiter's shadow.
PIA00274:
Io Glowing in the Dark
Full Resolution:     TIFF (1.414 MB)     JPEG (208.6 kB)
Add Image to Favorite List 1997-09-07 Io Galileo
Solid-State Imaging
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Four views of the volcano Loki Patera on Jupiter's moon Io showing changes seen on June 27th, 1996 by NASA's Galileo spacecraft as compared to views seen by the Voyager spacecraft during the 1979 flybys.
PIA00710:
Changes near the Volcano Loki Patera on Io
Full Resolution:     TIFF (5.808 MB)     JPEG (185.5 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 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
Full Resolution:     TIFF (8.241 MB)     JPEG (259.1 kB)
Add Image to Favorite List 1997-12-18 Io Galileo
Solid-State Imaging
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Io, the most volcanic body in the solar system is seen in the highest resolution obtained to date [Sept.7 & Nov. 6, 1996] by NASA's Galileo spacecraft.
PIA00583:
High Resolution Global View of Io
Full Resolution:     TIFF (9.084 MB)     JPEG (400.9 kB)
Add Image to Favorite List 1997-09-07 Io Galileo
Solid-State Imaging
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Four views of the volcano Ra Patera on Jupiter's moon Io showing changes seen on June 27th, 1996 by NASA's Galileo spacecraft as compared to views seen by the Voyager spacecraft during the 1979 flybys.
PIA00709:
Massive Resurfacing of the Ionian Volcano Ra Patera
Full Resolution:     TIFF (5.755 MB)     JPEG (211.6 kB)
Add Image to Favorite List 1997-12-18 Io Galileo
Solid-State Imaging
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Mosaic of images of Io acquired through the clear filter of the Solid State Imaging (CCD) system aboard NASA's Galileo spacecraft during orbit C3, show more than half of Io's surface.
PIA01108:
Mosaic of Io
Full Resolution:     TIFF (6.368 MB)     JPEG (1.045 MB)
Add Image to Favorite List 1998-02-04 Io Galileo
Solid-State Imaging
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Each time NASA's Galileo spacecraft orbits the planet Jupiter, it encounters one of the four Galilean satellites. From left to right in this mosaic, the moons shown are Io, Europa, Ganymede, and Callisto.
PIA00743:
Landscape Comparisons - Galilean Satellites
Full Resolution:     TIFF (6.437 MB)     JPEG (605.1 kB)
Add Image to Favorite List 1997-09-08 Io Galileo
Solid-State Imaging
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Three full-disk color views of Jupiter's volcanic moon Io as seen by NASA's Galileo spacecraft are shown in enhanced color to highlight details of the surface.
PIA00292:
Three Views of Io
Full Resolution:     TIFF (3.931 MB)     JPEG (118.1 kB)
Add Image to Favorite List 2001-02-23 Io Galileo
Solid-State Imaging
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Images taken at different times and from different positions by NASA's Galileo spacecraft provide information about the three-dimensional structure of a large mountain named Tohil Mons on Jupiter's moon Io.
PIA02586:
Tohil Mons, Io
Full Resolution:     TIFF (5.223 MB)     JPEG (602.5 kB)
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)
Full Resolution:     TIFF (6.806 MB)     JPEG (301 kB)
Add Image to Favorite List 2011-05-12 Io Galileo
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This graphic shows the internal structure of Jupiter's moon Io as revealed by data from NASA's Galileo spacecraft. Io is bathed in magnetic field lines (shown in blue) that connect the north polar region of Jupiter to the planet's south polar region.
PIA14116:
Io's "Sounding Signal" Animation Icon
Full Resolution:     TIFF (8.26 MB)     JPEG (320.2 kB)
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
Full Resolution:     TIFF (8.229 MB)     JPEG (257.5 kB)
Add Image to Favorite List 1997-11-17 Io Galileo
Solid-State Imaging
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This color image, acquired during NASA's Galileo ninth orbit (C9) around Jupiter, shows two volcanic plumes on Io. One plume was captured on the bright limb or edge of the moon, erupting over a caldera named Pillan Patera.
PIA01081:
Color Mosaic and Active Volcanic Plumes on Io
Full Resolution:     TIFF (4.933 MB)     JPEG (226.2 kB)
Add Image to Favorite List 1997-09-07 Io Galileo
Solid-State Imaging
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Four views of Euboea Fluctus on Jupiter's moon Io showing changes seen on June 27th, 1996 by NASA's Galileo spacecraft as compared to views seen by the Voyager spacecraft during the 1979 flybys.
PIA00711:
Unusual Volcanic Pyroclastic Deposits on Io
Full Resolution:     TIFF (4.224 MB)     JPEG (179.7 kB)
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
Full Resolution:     TIFF (8.191 MB)     JPEG (209.7 kB)
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 1998-03-26 Io Galileo
Near Infrared Mapping Spectrometer
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Hotspots are seen in the vicinity of Prometheus, Volund and Marduk, all sites of volcanic plume activity during NASA's Galileo encounter in 1996.
PIA00520:
NIMS: hotspots on Io during G2
Full Resolution:     TIFF (541 kB)     JPEG (103.4 kB)
Add Image to Favorite List 1997-09-10 Io Galileo
Solid-State Imaging
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This image, taken by NASA's Galileo spacecraft, shows a blue-colored volcanic plume consistent with the presence of sulfur dioxide gas and 'snow' condensing from the gas as the plume expands and cools.
PIA00293:
Eruption on Io
Full Resolution:     TIFF (1.322 MB)     JPEG (59.83 kB)
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
Full Resolution:     TIFF (3.3 MB)     JPEG (174.6 kB)
Add Image to Favorite List 2001-12-10 Io Galileo
Photopolarimeter-Radiometer
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Nighttime temperatures in the southern hemisphere of Jupiter's moon Io, mapped here with data from NASA's Galileo spacecraft, give hints about the textures of surface materials, as well as the locations of volcanic hot spots.
PIA03603:
Nighttime Temperatures on Southern Io
Full Resolution:     TIFF (2.642 MB)     JPEG (344.3 kB)
Add Image to Favorite List 1997-09-07 Io Galileo
Solid-State Imaging
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Four views of an unnamed volcanic center (latitude 11, longitude 337) on Jupiter's moon Io showing changes seen on
June 27th, 1996 by NASA's Galileo spacecraft as compared to views seen by the Voyager spacecraft during the 1979 
flybys.
PIA00713:
Surface Changes on Io
Full Resolution:     TIFF (3.614 MB)     JPEG (133.9 kB)
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
Full Resolution:     TIFF (3.631 MB)     JPEG (156.6 kB)
Add Image to Favorite List 1998-03-26 Io Galileo
Near Infrared Mapping Spectrometer
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This is an image of Io, taken by NASA's Galileo spacecraft during the G2 encounter in September 1996. This is a dayside image of Io (on the right) against the clouds of Jupiter (the blue background).
PIA00845:
NIMS: hotspots on Io during G2 (continued)
Full Resolution:     TIFF (632.6 kB)     JPEG (108.9 kB)
Add Image to Favorite List 1998-03-26 Io Galileo
Near Infrared Mapping Spectrometer
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NASA's Galileo spacecraft imaged Io at high spectral resolution during the G2 encounter on Sept. 6, 1996.
PIA00836:
Hotspots on Io During the Ganymede 2 Encounter
Full Resolution:     TIFF (460.5 kB)     JPEG (86.37 kB)
Add Image to Favorite List 1997-11-18 Io Galileo
Solid-State Imaging
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This false color infrared composite of Jupiter's moon Io was produced from images acquired in July and September, 1996, during the first two orbits through the Jovian system by NASA's Galileo spacecraft.
PIA00585:
Color Global Mosaic of Io
Full Resolution:     TIFF (5.461 MB)     JPEG (179.4 kB)
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
Full Resolution:     TIFF (4.465 MB)     JPEG (229.2 kB)
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
Full Resolution:     TIFF (2.485 MB)     JPEG (92.7 kB)
Add Image to Favorite List 1998-03-26 Io Galileo
Solid-State Imaging
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The three images of Io in eclipse (top) show volcanic hot spots and airglow associated with volcanic plumes and Io's atmosphere. They were acquired by NASA's Galileo spacecraft during three separate orbits of Jupiter when the Io was in Jupiter's shadow.
PIA00739:
Eclipse Images of Io (3 views)
Full Resolution:     TIFF (1.486 MB)     JPEG (218.7 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 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
Full Resolution:     TIFF (2.732 MB)     JPEG (150.1 kB)
Add Image to Favorite List 1996-01-29 Io Voyager
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These photos of the four Galilean satellites of Jupiter were taken by NASA's Voyager 1 during its approach to the planet in early March 1979. Io, Europa, Ganymede, and Callisto are shown in their correct relative sizes.
PIA00012:
Galilean Satellites
Full Resolution:     TIFF (2.14 MB)     JPEG (74.25 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 1997-11-18 Io Galileo
Solid-State Imaging
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Shown here is a comparison of NASA's Galileo color image (right, taken Sept. 7, 1996) of Jupiter's moon Io, with NASA's Voyager mosaic (left, taken in 1979) reprojected to the same geometry as the Galileo image.
PIA01063:
Voyager-to-Galileo Changes, Io's Anti-Jove Hemisphere
Full Resolution:     TIFF (2.955 MB)     JPEG (122.2 kB)
Add Image to Favorite List 1997-11-18 Io Galileo
Solid-State Imaging
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Global view of Jupiter's volcanic moon Io, obtained on Sept. 7,1996 by NASA's Galileo spacecraft.
PIA01064:
Global View of Io (Natural and False/Enhanced Color)
Full Resolution:     TIFF (4.072 MB)     JPEG (213.7 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 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
Full Resolution:     TIFF (2.237 MB)     JPEG (134.9 kB)
Add Image to Favorite List 1998-05-08 Io Galileo
Solid-State Imaging
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This composite includes the four largest moons of Jupiter which are known as the Galilean satellites. Shown from left to right are Io, closest to Jupiter, followed by Europa, Ganymede, and Callisto.
PIA01299:
The Galilean Satellites
Full Resolution:     TIFF (2.132 MB)     JPEG (156.4 kB)
Add Image to Favorite List 1998-03-26 Io Galileo
Near Infrared Mapping Spectrometer
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NASA's Galileo spacecraft obtained this image of half of Io's disk in darkness on Sept. 19, 1997.
PIA01226:
Two New Hot Spots on Io
Full Resolution:     TIFF (307.3 kB)     JPEG (67.14 kB)
Add Image to Favorite List 1998-03-26 Io Galileo
Near Infrared Mapping Spectrometer
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Sulfur dioxide, normally a gas at room temperatures, is known to exist on Io's surface as a frost, condensing there from the hot gases emanating from the Io volcanoes. This image was taken in 1996 by NASA's Galileo spacecraft.
PIA00841:
Distribution of Sulfur Dioxide Frost on Io
Full Resolution:     TIFF (173.2 kB)     JPEG (60.06 kB)
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
Full Resolution:     TIFF (2.093 MB)     JPEG (73 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 1996-01-29 Io Voyager
VG ISS - Narrow Angle
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This full-disk image of Jupiter's satellite Io was made from several frames taken by NASA's Voyager 1 on Mar. 4, 1979, as the spacecraft neared the satellite.
PIA00023:
Io - Full Disk
Full Resolution:     TIFF (1.21 MB)     JPEG (40.95 kB)
Add Image to Favorite List 1997-12-10 Io Galileo
Solid-State Imaging
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Shown here are color-coded images of Io in eclipse (top). The images were acquired by NASA's Galileo spacecraft during its tenth orbit around Jupiter.
PIA01094:
Io Degassing from sub- and anti-Jupiter Regions
Full Resolution:     TIFF (914.2 kB)     JPEG (101.9 kB)
Add Image to Favorite List 2001-03-29 Io Cassini-Huygens
Galileo
Solid-State Imaging
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Two tall volcanic plumes and the rings of red material they have deposited onto surrounding surface areas appear in images taken of Jupiter's moon Io by NASA's Galileo and Cassini spacecraft in late December 2000 and early January 2001.
PIA02588:
Galileo and Cassini Image Two Giant Plumes on Io
Full Resolution:     TIFF (1.374 MB)     JPEG (96.56 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 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 2000-03-06 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 1997-11-18 Io Galileo
Solid-State Imaging
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Volcanoes on Jupiter's moon Io are compared in these images from NASA's Galileo spacecraft (right) taken in early September of this year, and from the Voyager spacecraft (left) taken in 1979.
PIA00495:
Changing volcanoes on Io
Full Resolution:     TIFF (2.377 MB)     JPEG (60.55 kB)
Add Image to Favorite List 2013-04-04 Io 963x913x3
This map shows predicted heat flow at the surface of Jupiter's moon Io from two tidal-heating models. Red indicates areas where more heat is expected; blue where less heat is expected.
PIA16941:
Io Predicted Heat Flow Map
Full Resolution:     TIFF (2.639 MB)     JPEG (126.6 kB)
Add Image to Favorite List 2001-02-26 Io Galileo
Solid-State Imaging
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This pair of images taken by NASA's Galileo spacecraft captures a dynamic eruption at Tvashtar Catena, a chain of volcanic bowls on Jupiter's moon Io. They show a change in the location of hot lava over a period of a few months in 1999 and early 2000.
PIA02584:
Eruption at Tvashtar Catena on Io
Full Resolution:     TIFF (1.901 MB)     JPEG (114.5 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 2014-08-04 Io Gemini North Telescope
W. M. Keck Observatory
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These images show Jupiter's moon Io obtained at different infrared wavelengths with the W. M. Keck Observatory's 10-meter Keck II telescope on Aug. 15, 2013 (a-c), and the Gemini North telescope on Aug. 29, 2013 (d).
PIA18656:
Eruptions on Io
Full Resolution:     TIFF (2.431 MB)     JPEG (61.14 kB)
Add Image to Favorite List 1998-03-26 Io Galileo
Solid-State Imaging
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These images of Jupiter's volcanic moon, Io, show the results of a dramatic event that occurred on the fiery satellite during a five-month period (April 4-Sept 19, 1997.
PIA00744:
Arizona-sized Io Eruption
Full Resolution:     TIFF (2.063 MB)     JPEG (65.17 kB)
Add Image to Favorite List 1998-03-26 Io Galileo
Solid-State Imaging
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This color image, acquired during NASA's Galileo's ninth orbit around Jupiter, shows two volcanic plumes on Io. One plume was captured on the bright limb or edge of the moon, erupting over a caldera (volcanic depression) named Pillan Patera.
PIA00703:
Active Volcanic Plumes on Io
Full Resolution:     TIFF (817.7 kB)     JPEG (42.25 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 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
Full Resolution:     TIFF (2.1 MB)     JPEG (70.93 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 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 2000-10-26 Io Galileo
Solid-State Imaging
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Prometheus is the 'Old Faithful' of the many volcanoes on Jupiter's moon Io. A broad, umbrella-shaped plume of gas and dust has been spotted above Prometheus by NASA's Voyager and Galileo spacecraft every time the viewing conditions have been favorable.
PIA02565:
Sources of Volcanic Plumes Near Prometheus
Full Resolution:     TIFF (1.988 MB)     JPEG (98.6 kB)
Add Image to Favorite List 2007-10-09 Io New Horizons
LEISA
LORRI
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A global map of Jupiter's moon Io derived from eight images taken by the Long Range Reconnaissance Imager (LORRI) on the New Horizons spacecraft, as it passed Jupiter on its way to Pluto in late February 2007.
PIA10099:
Changes on Io
Full Resolution:     TIFF (2.028 MB)     JPEG (81.55 kB)
Add Image to Favorite List 2000-10-26 Io Galileo
Solid-State Imaging
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This composite of images, all acquired by NASA's Galileo spacecraft, contains three views at three different image resolutions of the volcano Prometheus on Jupiter's moon Io. The upper mosaic consists of eight high-resolution frames.
PIA02564:
Io's Prometheus Volcano at Various Resolutions
Full Resolution:     TIFF (739.5 kB)     JPEG (93.19 kB)
Add Image to Favorite List 2001-06-22 Io Galileo
Photopolarimeter-Radiometer
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Powerful volcanoes and the previous day's sunshine warm the nighttime surface of Jupiter's moon Io, as seen in this image from NASA's Galileo spacecraft. The left-hand frame shows the best view that Galileo has yet provided of Io's nighttime temperatures.
PIA02589:
Io's Nighttime Heat
Full Resolution:     TIFF (1.384 MB)     JPEG (51.07 kB)
Add Image to Favorite List 2001-10-04 Io Galileo
Near Infrared Mapping Spectrometer
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Volcanic hot spots, including a bright one never seen before, pepper an infrared color-coded image (left) of Jupiter's moon Io, taken by NASA's Galileo spacecraft on Aug. 6, 2001.
PIA02591:
Hot Spots on Io
Full Resolution:     TIFF (806.2 kB)     JPEG (73.93 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 1998-03-26 Io Galileo
Near Infrared Mapping Spectrometer
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On Feb. 21, 1997, the Galileo spacecraft observed Io in daylight from a range of approximately 703,000 km (440,000 miles). Loki Patera, historically the most active and persistent hot spot on Io, is located on the hemisphere of Io always facing Jupiter.
PIA00856:
NIMS Observes Increased Activity at Loki Patera, Io
Full Resolution:     TIFF (912.3 kB)     JPEG (40.86 kB)
Add Image to Favorite List 1998-03-06 Io Galileo
Solid-State Imaging
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These full disk views of Jupiter's volcanic moon, Io, use images which were acquired by NASA's Galileo spacecraft on Dec. 18, 1996, when Io, the spacecraft, and the sun were nearly all aligned (near zero degrees phase angle).
PIA00584:
Global View of Io in various colors
Full Resolution:     TIFF (1.641 MB)     JPEG (102.7 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 2000-05-31 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 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
Full Resolution:     TIFF (1.347 MB)     JPEG (56.68 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 1997-11-18 Io Galileo
Solid-State Imaging
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Io, the most volcanic body in the solar system, is seen in front of Jupiter's cloudy atmosphere in this image taken Sept. 7, 1996, by NASA's Galileo spacecraft, now orbiting the giant planet.
PIA00494:
Io in front of Jupiter
Full Resolution:     TIFF (2.13 MB)     JPEG (88.84 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 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 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 1997-12-18 Io Galileo
Solid-State Imaging
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The varied effects of Ionian volcanism can be seen in this false color infrared composite image of Io's trailing hemisphere. Color data from Galileo's first orbit have been combined with a higher resolution clear filter picture taken on the third orbit.
PIA01112:
Pele Plume Deposit on Io
Full Resolution:     TIFF (1.345 MB)     JPEG (66 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 1997-09-07 Io Galileo
Solid-State Imaging
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Jupiter's moon Io with Pele prominently in view. The inset images are from NASA's Voyager 1. The Galileo image was
obtained by the imaging system on board the spacecraft in June, 1996.
PIA00718:
Io's Pele Hemisphere
Full Resolution:     TIFF (1.461 MB)     JPEG (45.62 kB)
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
Full Resolution:     TIFF (1.445 MB)     JPEG (51.48 kB)
Add Image to Favorite List 1997-09-08 Io Galileo
Solid-State Imaging
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The mottled face of Jupiter's volcanically active moon Io as viewed by NASA's Galileo spacecraft.
PIA00282:
Io - Full Disk Centered on Media Regio
Full Resolution:     TIFF (275.2 kB)     JPEG (15.88 kB)
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