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List		 Addition DateSort Ascending Target Mission Instrument Size
Add Image to Favorite List 2000-06-22 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 892x668x3
Gully-like features found on the slopes of various craters, troughs, and other depressions are evident in this image taken by NASA's Mars Global Surveyor.
PIA01031:
Evidence for Recent Liquid Water on Mars: Basic Features of Martian Gullies
Full Resolution:     TIFF (1.896 MB)     JPEG (136.2 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the western portions of Melas and Candor Chasms in the Valles Marineris canyon system. Hints of layers in the canyon walls are evident.
PIA01692:
Western Melas and Candor Chasms, Valles Marineris
Full Resolution:     TIFF (4.175 MB)     JPEG (210 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 819x1993x1
NASA's Mars Global Surveyor shows layers of wall rock, windblown drifts, and landslide deposits can be seen in this view of the wall of Tithonium Chasma in the Valles Marineris trough system.
PIA01696:
East Tithonium Chasma Wall, Valles Marineris
Full Resolution:     TIFF (1.32 MB)     JPEG (222.8 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a collection of troughs and depressions located in northern Tharsis known as the Olympica Fossae, south of the Alba Patera volcano.
PIA01695:
Martian Variety Exhibited by the Olympica Fossae
Full Resolution:     TIFF (1.288 MB)     JPEG (218.2 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 1024x1025x1
NASA's Mars Global Surveyor shows the cratered uplands located between the Amenthes Fossae and Hesperia Planum with windblown dunes and ripples.
PIA01694:
Ripples on Cratered Terrain North of Hesperia Planum
Full Resolution:     TIFF (955.1 kB)     JPEG (180.5 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 836x1115x1
NASA's Mars Global Surveyor shows the margin of a large lava flow located on Daedalia Planum, southwest of the Arsia Mons volcano. The lava flow surface is rough but mantled with fine sand or dust.
PIA01693:
Margin of Lava Flow in Daedalia Planum
Full Resolution:     TIFF (715.5 kB)     JPEG (116.4 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a portion of the floor of Melas Chasma. Dark sand dunes dominate the floor of this portion of the Valles Marineris canyon system. Smaller ripples are also visible in the troughs.
PIA01691:
Melas Chasma Floor
Full Resolution:     TIFF (885.3 kB)     JPEG (136.5 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the volcanic Tharsis region, including these valleys and associated lava flows on the plains southeast of Olympus Mons. Lava flows are visible, but meandering valleys with streamlined 'islands' dominate the scene.
PIA01689:
Valleys and Lava Flows near Olympus Mons
Full Resolution:     TIFF (1.057 MB)     JPEG (177.5 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows Vastitas Borealis plain, north of Utopia Planitia on Mars. curved crater rims are visible in the upper and lower quarters of the image, and the crater floor is visible at the center right.
PIA01688:
Patches of Remnant Frost/Snow on Crater Rim in Northern Summer
Full Resolution:     TIFF (725.4 kB)     JPEG (103.4 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 806x1168x1
NASA's Mars Global Surveyor shows a small portion of the floor of Alexey Tolstoy Crater with a dark surface that is extremely rough and rocky. It appears that the smoother, bright material has been eroded back, exposing the lower, darker surface.
PIA01687:
Floor of Alexey Tolstoy Crater
Full Resolution:     TIFF (954.1 kB)     JPEG (213.9 kB)
Add Image to Favorite List 2000-06-17 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a chain of elliptical pits on the lower east flank of Pavonis Mons on Mars. The pits follow the trend of these faults, and indicate the locus of collapse.
PIA01686:
Chain of Pits on Pavonis Mons
Full Resolution:     TIFF (344.8 kB)     JPEG (52.37 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a crater located on a plain west of the Tartarus Montes (east of Elysium Mons volcano). The crater shows deposits of sand and dust on the floor and in low areas around the rim.
PIA02017:
MOC "Looking Into" Martian Craters
Full Resolution:     TIFF (841.4 kB)     JPEG (113.2 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows darks and dunes and remnant patches of bright frost left over from the winter taken in April, 1999. Dark streaks indicate recent movement of sand.
PIA02001:
Polar Dunes In Summer Exhibit Frost Patches, Wind Streaks
Full Resolution:     TIFF (631.3 kB)     JPEG (82.96 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows pedestal craters and wind streaks in South Medusae Fossae.
PIA01698:
Pedestal Craters and Wind Streaks, South Medusae Fossae
Full Resolution:     TIFF (458.7 kB)     JPEG (84.24 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a bright, wispy cloud hanging over southern Malea Planum on Mars. The surface was covered with south polar wintertime frost.
PIA02021:
South Melea Planum, By The Dawn's Early Light
Full Resolution:     TIFF (60.38 kB)     JPEG (9.541 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 233x449x1
NASA's Mars Global Surveyor shows a polygonally-patterned surface on southern Malea Planum on Mars. The surface appears a relatively uniform gray. At the time the picture was acquired, the surface was covered with south polar wintertime frost.
PIA02020:
South Melea Planum, By The Dawn's Early Light
Full Resolution:     TIFF (79.2 kB)     JPEG (17.16 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a crater found on Hesperia Planum on Mars. This crater was formed by the impact and explosion of a meteorite at some time in the martian past.
PIA02019:
MOC "Looking Into" Martian Craters
Full Resolution:     TIFF (835.5 kB)     JPEG (145 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 512x2115x1
NASA's Mars Global Surveyor shows a crater located in south-central Syria Planum on Mars. This crater was formed by the impact and explosion of a meteorite at some time in the martian past.
PIA02018:
MOC "Looking Into" Martian Craters
Full Resolution:     TIFF (811.8 kB)     JPEG (109.5 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows Warrego Valles, a system of discontinuous valleys located in the martian southern hemisphere south of Valles Marineris between Aonia Terra and Icaria Planum.
PIA02011:
Look Out Below! Rough Terrain In the Warrego Valles Region
Full Resolution:     TIFF (631 kB)     JPEG (161.9 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Viking Orbiter picture, on left, shows the crater, Escalante. The right shows the same area from NASA's Mars Global Surveyor. Both show a crater wall that is relatively smooth.
PIA02007:
Once Pitted, Twice Spied: A New High Resolution View Inside Escalante Crater
Full Resolution:     TIFF (1.337 MB)     JPEG (235.6 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor passed over the Apollinaris Patera volcano and captured a patch of bright clouds hanging over its summit in the early martian afternoon during the month of April 1999.
PIA02006:
Apollinaris Patera, Mars
Full Resolution:     TIFF (954.3 kB)     JPEG (66.37 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows northern summer on Mars where clouds are very common over the famous Tharsis volcanoes during the afternoon.
PIA02005:
Tharsis Volcanoes and Valles Marineris, Mars
Full Resolution:     TIFF (977.4 kB)     JPEG (31.85 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a large, circular bright region called Arabia Terra. Syrtis Major is the dark region toward the lower right. The north polar cap is visible at the top, and the bright feature lower right is the Hellas Basin.
PIA02004:
Syrtis Major and Arabia Terra, Mars
Full Resolution:     TIFF (909.1 kB)     JPEG (32.2 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the edge of Mars' retreating polar cap as a bright, wind-streaked surface. Rdges, tiny buttes and pits are part of the polar cap's layered deposits.
PIA02003:
On the Edge: The Retreating Mars Polar Ice Cap
Full Resolution:     TIFF (701.8 kB)     JPEG (146.4 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor captured this dramatic view of a slope in the Amenthes Rupes region near the martian equator showing layered bedrock, smooth-surfaced debris at the slope base, and many small ripple-like dunes.
PIA02002:
Layers of Cratered Highland Bedrock Exposed in Amenthes Slope
Full Resolution:     TIFF (679.6 kB)     JPEG (129.8 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 910x910x3
NASA's Mars Global Surveyor's view of the red planet Mars shows the region that includes Ares Vallis and the Chryse Plains and the north polar cap.
PIA02000:
Acidalia and Chryse Plains, Mars
Full Resolution:     TIFF (1.02 MB)     JPEG (32.77 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 836x1057x1
NASA's Mars Global Surveyor shows rounded, rocky ridges separated by lowlands filled with sand or dust in a complex, ridged terrain in North Terra Cimmeria on Mars.
PIA01699:
A Complex, Ridged Terrain in North Terra Cimmeria
Full Resolution:     TIFF (612 kB)     JPEG (96.2 kB)
Add Image to Favorite List 2000-06-14 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a common, rough and bumpy texture on the northern plains of Mars.
PIA01697:
Northern Plains Textures Visible Near the Terminator
Full Resolution:     TIFF (1.286 MB)     JPEG (375.6 kB)
Add Image to Favorite List 2000-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 768x640x3
NASA's Mars Global Surveyor shows the volcanoes of the Tharsis region on Mars. The white or bluish-white features are clouds. Clouds are common over the larger Tharsis volcanoes in mid-afternoon.
PIA02049:
Regional View of the Tharsis Volcanoes
Full Resolution:     TIFF (1.379 MB)     JPEG (60.17 kB)
Add Image to Favorite List 2000-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a dust storm between eastern Ius Chasma and western Melas Chasma on Mars.
PIA02045:
May 1999 Dust Storm in Valles Marineris
Full Resolution:     TIFF (2.463 MB)     JPEG (93.21 kB)
Add Image to Favorite List 2000-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows an area on Mars that appears to be smooth, with rough texture probably cause by wind erosion.
PIA02064:
MOC Providing Clues For Future Landing Site Selection
Full Resolution:     TIFF (1.088 MB)     JPEG (270.6 kB)
Add Image to Favorite List 2000-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 836x1330x1
NASA's Mars Global Surveyor shows a rugged plain in the martian southern cratered highlands near the Nepenthes Mensae on Mars.
PIA02063:
MOC Providing Clues For Future Landing Site Selection
Full Resolution:     TIFF (867.9 kB)     JPEG (227.9 kB)
Add Image to Favorite List 2000-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 672x1135x1
NASA's Mars Global Surveyor shows a portion of the Nilosyrtis Mensae region, located north of Syrtis Major and southwest of Utopia Planitia. Old remnants of the cratered highlands are common, and they are usually in the form of mesas and buttes.
PIA02048:
North Nilosyrtis Mensae
Full Resolution:     TIFF (707.1 kB)     JPEG (145.2 kB)
Add Image to Favorite List 2000-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 512x1265x1
NASA's Mars Global Surveyor shows very large windblown sand dunes of Mars, composed of dark, rather than light grains.
PIA02047:
Big, Dark Dunes Northeast of Syrtis Major
Full Resolution:     TIFF (607.5 kB)     JPEG (116.8 kB)
Add Image to Favorite List 2000-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows mesas and smaller buttes that occur on the Elysium Plains, south of the Cerberus region in the Martian eastern hemisphere.
PIA02046:
A Martian "Monument Valley" -- Mesas on the Elysium Plains
Full Resolution:     TIFF (866.8 kB)     JPEG (144.5 kB)
Add Image to Favorite List 2000-06-07 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 502x2347x1
NASA's Mars Global Surveyor shows a portion of the ancient Auqakuh Vallis and many eroded remnants of the ancient cratered terrain.
PIA02043:
Eroded, Layered Cratered Highlands of Eastern Arabia Terra
Full Resolution:     TIFF (1.162 MB)     JPEG (210.9 kB)
Add Image to Favorite List 2000-06-02 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 1024x1375x1
NASA's Mars Global Surveyor shows dunes composed of low albedo (dark) sand grains encircle the north polar cap of Mars. This view was taken during the northern summer in May 1999.
PIA02068:
North Polar Sand Dunes
Full Resolution:     TIFF (1.305 MB)     JPEG (284.4 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 552x1012x3
NASA's Mars Global Surveyor shows a frosty, retreating south polar cap (white) on Mars, and wisps of dust storm clouds (grayish-orange). Also seen is the southern most of the large environmental changes volcanoes, Arsia Mons.
PIA02096:
Southern Mars: It's Spring!
Full Resolution:     TIFF (1.177 MB)     JPEG (38.04 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 512x1030x1
NASA's Mars Global Surveyor shows a snow-covered surface located on Malea Planum, south of the giant Hellas impact basin on Mars.
PIA02095:
Winter Frosts of the Retreating South Polar Cap
Full Resolution:     TIFF (402.7 kB)     JPEG (111.2 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 831x2367x1
NASA's Mars Global Surveyor shows a transition zone between the cratered highlands of Arabia Terra, and the less-cratered lowlands of Acidalia Planitia on Mars. Boulders are present on some hill slopes, and plains between the hills are rough and pitted.
PIA02094:
Water: Sustained Flow
Full Resolution:     TIFF (2.177 MB)     JPEG (456 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the eastern third of an impact crater located in Acidalia Planitia on Mars featuring the walls, raised rim, and ejecta material thrown out of the crater during this blast.
PIA02093:
Detail of an Impact Crater, Acidalia Planitia
Full Resolution:     TIFF (689.6 kB)     JPEG (164.8 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the upper layer of Martian plains surrounding this impact crater that have been stripped and deflated by wind. The rocky ejecta of the crater, however, protected the material beneath the ejecta blanket from such erosion.
PIA02085:
Pedestal Crater
Full Resolution:     TIFF (838.2 kB)     JPEG (146.8 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows lava flows and channels on the flanks of the Alba Patera volcano on Mars, mostly obscured by a covering of eroded, lumpy-textured material of unknown origin. This picture was taken in July 1998.
PIA02082:
Alba Patera Surface
Full Resolution:     TIFF (566.4 kB)     JPEG (127 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 672x993x1
NASA's Mars Global Surveyor shows the ridged surface in the lower half of this image is that of a large lava flow in Daedalia Planum, southwest of the Arsia Mons volcano. This image was taken June 5, 1999.
PIA02081:
Daedalia Lava Flow
Full Resolution:     TIFF (642.9 kB)     JPEG (137.4 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the lower south flank of the Olympus Mons volcano on Mars; lava flows with leveed central channels and a variety of surface textures are present. The picture was taken in July 1998.
PIA02080:
Olympus Lava Flows
Full Resolution:     TIFF (750 kB)     JPEG (156.4 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the Tharsis volcanoes (mostly covered by bluish-white water ice clouds) and the Valles Marineris trough system on Mars in April 1999.
PIA02079:
Tharsis and Marineris
Full Resolution:     TIFF (2.895 MB)     JPEG (150.1 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the Olympica Fossae, a complex array of deep troughs, channels and streamlined landforms in northern Tharsis. Water, mud, and lava are all thought to have played a role in the formation of these features.
PIA02078:
Olympica Fossae
Full Resolution:     TIFF (642.4 kB)     JPEG (124.6 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 717x1399x1
NASA's Mars Global Surveyor shows small valleys in the martian cratered highlands are often quite old and have been modified by erosion and wind action. The valleys shown here are located on a crater rim in Terra Tyrrhena.
PIA02077:
Valley Networks
Full Resolution:     TIFF (1.014 MB)     JPEG (188.2 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a fluid-scoured surface in the Hrad Vallis system, located northwest of Elysium Mons on Mars. The fluid is presumed to have been water.
PIA02076:
Hrad Vallis
Full Resolution:     TIFF (970.4 kB)     JPEG (169 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows valley floors in the middle latitudes of Mars, particularly in the 'fretted terrain' of northern Arabia Terra which have curious grooved and pitted surfaces.
PIA02075:
Lineated Valley Floor
Full Resolution:     TIFF (1.293 MB)     JPEG (306.4 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 1024x1514x1
NASA's Mars Global Surveyor shows a crater is in northern Arabia Terra taken in April 1998. Some craters in the middle latitudes of Mars exhibit strange, concentric- and radial-textured patterns on their floors.
PIA02074:
Fretted Terrain Crater
Full Resolution:     TIFF (1.521 MB)     JPEG (324.6 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 1024x812x1
NASA's Mars Global Surveyor shows the floor of an old impact crater on the northern plains of Mars. Each 'tile' is somewhat larger than a football field.
PIA02072:
Indications of Subsurface Ice: Polygons on the Northern Plains
Full Resolution:     TIFF (867.6 kB)     JPEG (236.7 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows three different orbits over the north polar cap in April 1999. Each shows a different part of the same ice-free trough.
PIA02070:
Polar Stratigraphy
Full Resolution:     TIFF (2.355 MB)     JPEG (578.6 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows dunes in Chasma Boreale, a giant trough in the north polar cap. This September 1998 view shows dark sand emergent from beneath a veneer of bright frost left over from the northern winter that ended in July 1998.
PIA02069:
Frost-covered Dunes
Full Resolution:     TIFF (874.8 kB)     JPEG (139.1 kB)
Add Image to Favorite List 2000-06-01 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a global 'snapshot' of weather patterns across Mars. Here, bluish-white water ice clouds hang above the Tharsis volcanoes.
PIA02066:
Global Weather
Full Resolution:     TIFF (6.258 MB)     JPEG (327.8 kB)
Add Image to Favorite List 2000-05-27 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows smooth, mantled surfaces, as well as bare, rocky surfaces on Mars.
PIA02306:
A Typical Martian Scene: Boulders and Slopes in a Crater in Aeolis
Full Resolution:     TIFF (760.1 kB)     JPEG (127.2 kB)
Add Image to Favorite List 2000-05-26 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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This image captured by NASA's Mars Global Surveyor (MGS) on July 21, 1999, shows polar regions on Mars during the spring and summer seasons, do indeed resemble aerial photographs of sand dune fields on Earth.
PIA02300:
Defrosting Polar Dunes--"They Look Like Bushes!"
Full Resolution:     TIFF (421.2 kB)     JPEG (118.9 kB)
Add Image to Favorite List 2000-05-22 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows a circle of mounds on the northern plains near the Phlegra Montes on Mars. These mounds were once the rim of a crater formed by impact of a meteorite.
PIA02802:
Hot-Cross-Bun' on the Northern Plains
Full Resolution:     TIFF (841.6 kB)     JPEG (166 kB)
Add Image to Favorite List 2000-05-22 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
 836x3919x1
NASA's Mars Global Surveyor shows dark, ridged surfaces, common in the central floors of Valles Marineris and elsewhere in the equatorial regions of Mars.
PIA02801:
Ridged Terrain on the Floor Melas Chasma
Full Resolution:     TIFF (3.129 MB)     JPEG (558.5 kB)
Add Image to Favorite List 2000-05-22 Mars Mars Global Surveyor (MGS)
 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows the martian north polar cap on March 13, 1999, in early northern summer. The light-toned surfaces are residual water ice that remains through the summer season.
PIA02800:
The Martian North Polar Cap in Summer
Full Resolution:     TIFF (4.691 MB)     JPEG (162 kB)
Add Image to Favorite List 2000-05-22 Mars Mars Global Surveyor (MGS)
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NASA's Mars Global Surveyor shows many tens of layers of several meters thickness in the walls of a mesa in Melas Chasma in Valles Marineris on Mars. Erosion by mass wasting, landslides, has exposed these layers creating the dark fan-shaped deposits.
PIA02398:
Layers and a Dust Devil in Melas Chasma
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NASA's Mars Global Surveyor shows a dark, relatively smooth plain in the central Terra Meridiani region of Mars. The larger circular features are thought to be the locations of buried craters formed by meteorite impact.
PIA02397:
The Plains of Central Terra Meridiani
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NASA's Mars Global Surveyor shows the Libya Montes, a ring of mountains up-lifted by the giant impact that created the Isidis basin to the north on Mars.
PIA02396:
A Regional View of the Libya Montes
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NASA's Mars Global Surveyor shows an intermountain valley floor in the Libya Montes region of Mars. The Libya Montes were formed by the giant impact that created the ancient Isidis basin.
PIA02395:
A Valley in the Libya Montes
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Add Image to Favorite List 2000-05-16 Mars Mars Global Surveyor (MGS)
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This image captured by NASA's Mars Global Surveyor (MGS) in 2005 shows 'Galle Crater' or the 'Happy Face Crater' with patches of white water ice frost in and around the crater's south-facing slopes.
PIA02325:
Have a Nice Spring! MOC Revisits "Happy Face" Crater
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NASA's Mars Global Surveyor shows the range of surface texture and morphology found within the Mars Polar Lander landing ellipse.
PIA02313:
Mars Polar Lander Site Compared With Washington, D.C.
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NASA's Mars Global Surveyor shows two craters, a very rare occurrence on Mars' south polar layered deposits.
PIA02312:
Mars Polar Lander Site Surface Details
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NASA's Mars Global Surveyor shows the location of the primary (blue) and secondary (white) landing ellipses, which were selected on the basis of interpretation of the MGS data, in particular data from NAS Mars Orbiter Laser Altimeter and Mars Orbiter.
PIA02310:
MGS MOC Coverage of Mars Polar Lander Region
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NASA's Mars Global Surveyor shows
PIA02305:
Late Summer Storms Over the Mars North Polar Region
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NASA's Mars Global Surveyor shows sand dunes that are dark and patches of southern winter frost are bright on Mars.
PIA02304:
Dune Activity in Proctor Crater
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NASA's Mars Global Surveyor shows a small portion of the giant dune field that surrounds Mars' north polar region, as it appeared on August 23, 1998.
PIA02303:
Defrosting Polar Dunes--Dark Spots and Wind Streaks
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NASA's Mars Global Surveyor shows changes on a set of nearly pear-shaped sand dunes located on the floor of an unnamed crateon Mars featuring dunes as they appeared on June 19, 1999 and July 15, 1999.
PIA02302:
Defrosting Polar Dunes--Changes Over a 26-Day Period
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This image captured by NASA's Mars Global Surveyor (MGS) shows the area dubbed as 'the snow leopard,' a dune field located at 61.5°S, 18.9°W, as it appeared on July 1, 1999.
PIA02301:
Defrosting Polar Dunes -- "The Snow Leopard"
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NASA's Mars Global Surveyor shows small cone-shaped structures on lava flows in southern Elysium Planitia, Marte Valles, and northwestern Amazonis Planitia in the northern hemisphere of the red planet Mars.
PIA02341:
Possible Rootless Cones or Pseudo craters on Mars
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NASA's Mars Global Surveyor shows jumbled and broken terrain known as chaotic terrain. The region shown here is named 'Margaritifer Chaos.'
PIA02340:
The Terrain of Margaritifer Chaos
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NASA's Mars Global Surveyor shows the contact between the Lycus Sulci uplands and Amazonis Planitia lowlands on Mars.
PIA02338:
Mars Shoreline Tests: Contact between Lycus Sulci and Amazonis Planitia
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NASA's Mars Global Surveyor shows the three most abundant terrain types seen in the Mars Polar Lander landing ellipse, ridges and small knobs, ridges and gullies, and ridges and pits.
PIA02347:
Mars Polar Lander Landing Zone Compared With JPL
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NASA's Mars Global Surveyor shows a variety of surface textures, terrains, and geologic features that were found in the landing ellipse of the Mars Polar Lander.
PIA02346:
Mars Polar Lander Landing Zone Compared With JPL
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NASA's Mars Global Surveyor shows spring in the southern hemisphere of Mars, and the region shown emerged from beneath a winter coating of frost.
PIA02344:
Patterned Ground of the Martian Antarctic
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NASA's Mars Global Surveyor shows wide impact crater on the floor of a larger crater in the Nepenthes Mensae region on Mars.
PIA02343:
Layers and Boulders in Crater Wall, Nepenthes Mensae Region
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NASA's Mars Global Surveyor shows the shadow of the martian moon, Phobos, as it was cast upon western Xanthe Terra on August 26, 1999.
PIA02342:
MOC Views of Martian Solar Eclipses
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NASA's Mars Global Surveyor shows autumn frost in the martian northern hemisphere around August 1, 1999.
PIA02339:
Autumn Frost, North Polar Sand Dunes
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NASA's Mars Global Surveyor shows Arsia Mons, one of the largest volcanoes known on Mars. This shield volcano is part of an aligned trio known as the Tharsis Montes, the others are Pavonis Mons and Ascraeus Mons.
PIA02337:
Wide Angle View of Arsia Mons Volcano
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NASA's Mars Global Surveyor shows dark sand exposed from beneath retreating frost on Mars' Mountains of Mitchel.
PIA02336:
The Mysterious Martian Mountains of Mitchel
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NASA's Mars Global Surveyor shows Lasswitz Crater on Mars as it appeared on July 9, 1999,
PIA02331:
Mars Global Surveyor MOC Celebrates 2 Years in Orbit!
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NASA's Mars Global Surveyor shows a wide area along the edge of the hilly, Gigas Sulci terrain on Mars with several troughs that look something like gashes made by a giant knife.
PIA02326:
Diverse Geologic Features of Western Tharsis, Mars
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Add Image to Favorite List 2000-05-12 Mars Mars Global Surveyor (MGS)
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NASA's Mars Global Surveyor shows late spring in this portion of the martian south polar region. Dark patches within the ellipse are sand and small fields of windblown sand dunes. The bright patches toward the top of the image are frost.
PIA02348:
Latest Color View of Polar Landing Site
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NASA's Mars Global Surveyor shows layers of Mars' south polar layered deposits.
PIA02345:
Layers of the South Polar Layered Deposits
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NASA's Mars Global Surveyor shows cemented dunes found in the Herschel Basin of Terra Cimmeria on Mars.
PIA02358:
The Groovy Dunes of Herschel
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NASA's Mars Global Surveyor shows small windblown dunes at the base of a slope in Lycus Sulci on Mars that have been over-ridden by more recent dark streaks (arrows).
PIA02357:
Dark Streaks Over-riding Inactive Dunes
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NASA's Mars Global Surveyor shows dark and somewhat crescent-shaped dunes on Mars.
PIA02356:
Dark Dunes Over-riding Bright Dunes
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NASA's Mars Global Surveyor shows classic, crescentic shape of the dark barchan dunes on Mars.
PIA02355:
Movement of Whole Martian Dunes Difficult to Detect or Confirm
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NASA's Mars Global Surveyor shows dark streaks on the steep, down-wind slopes of sand dunes in Rabe Crater on Mars.
PIA02354:
Recent Sand Avalanching on Rabe Crater Dunes
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 Mars Orbiter Camera (MOC)
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NASA's Mars Global Surveyor shows martian terrain while seeking the Mars Polar Lander that went missing during its December 3, 1999.
PIA02353:
Mars Polar Lander: The Search Continues
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NASA's Mars Global Surveyor shows the location NASA's Mars Pathfinder known the best because there are several distinct landmarks visible (North Peak, Big Crater, Twin Peaks) in the lander's images that help in locating the spacecraft.
PIA02352:
MOC's Highest Resolution View of Mars Pathfinder Landing Site
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NASA's Mars Global Surveyor shows Mars' northern hemisphere among the mesas and buttes of the Nilosyrtis Mensae.
PIA02350:
01 January 2000 On The Red Planet
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NASA's Mars Global Surveyor shows the martian south polar layered terrain on December 3, 1999 during a search for NASA's missing Mars Polar Lander.
PIA02349:
Mars Polar Lander: The Search Begins
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Add Image to Favorite List 2000-04-29 Mars Mars Global Surveyor (MGS)
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NASA's Mars Global Surveyor shows a chilly Lomonosov Crater in the northern hemisphere of Mars on April 20, 2000. The rims of the crater appear white because they are covered with wintertime frost.
PIA02394:
The Frosty Rims of Lomonosov Crater in Winter
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NASA's Mars Global Surveyor shows Mars' south polar cap on April 17, 2000. In winter and early spring, this entire scene would be covered by frost. In summer, the cap shrinks to its minimum size, as shown here.
PIA02393:
South Polar Cap, Summer 2000
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Add Image to Favorite List 2000-04-29 Mars Mars Global Surveyor (MGS)
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NASA's Mars Global Surveyor shows a field of parallel ridges north of a dune field in a wind-eroded material named the Apollinaris Sulci on Mars.
PIA02359:
Ancient Paleo-Dunes Battered by Impact Craters
Full Resolution:     TIFF (1.13 MB)     JPEG (259 kB)
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