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Browse All
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Mars and Sun and Mars Global Surveyor Orbiter (MGS) from 2005
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| Description |
Browse Image | Medium Image (129 kB) | Large (20.4 MB) Hi-Res (NASA's Planetary Photojournal) [ http://photojournal.jpl.nasa.gov/catalog/PIA08813 ] |
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Wind Erosion in Tithonium
PIA07890
Sol (our sun)
Mars Orbiter Camera
| Title |
Wind Erosion in Tithonium |
| Original Caption Released with Image |
30 April 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows wind-eroded sedimentary rocks in Tithonium Chasma, one of the troughs of the Valles Marineris system. The winds responsible for the majority of the erosion blew from the northeast (upper right), creating yardangs (wind erosion ridges) with their tapered ends pointing downwind. "Location near": 4.6°S, 88.3°W "Image width": ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Winter |
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Martian Gullies
PIA04146
Sol (our sun)
Mars Orbiter Camera
| Title |
Martian Gullies |
| Original Caption Released with Image |
13 August 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows gullies cut into layered rock and debris on the wall of a south middle-latitude crater. Gullies such as these are common at middle latitudes and may have required water to form. "Location near": 41.1°S, 204.8°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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East Candor Outcrops
PIA03922
Sol (our sun)
Mars Orbiter Camera
| Title |
East Candor Outcrops |
| Original Caption Released with Image |
30 May 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows light-toned, wind-eroded, sedimentary rock outcrops in eastern Candor Chasma, part of the Valles Marineris trough system. "Location near": 7.7°S, 65.3°W "Image width": ~3 km (~1.9 mi "Illumination from": lower left "Season": Southern Spring |
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Seasonal Trend in Water Vapo
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PIA07102
Sol (our sun)
Thermal Emission Spectromete
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| Title |
Seasonal Trend in Water Vapor Seen from Orbit |
| Original Caption Released with Image |
The seasonal trend in the amount of water vapor in Mars' atmosphere, as observed by thermal emission spectrometer on NASA's Mars Global Surveyor orbiter, varies by latitude. This plot starts near the beginning of fall in the southern hemisphere for the year before the Mars Exploration Rover mission began and ends on August 30, 2004, slightly more than one martian year later. Purple represents no water while red represents about 50 precipitable micrometers, which is about 10,000 times less than on Earth. The units of time along the horizontal axis are given in longitude of the Sun (Ls) as measured in a Mars-centered coordinate system, a way to reflect the elliptical nature of Mars' orbit. On this scale, Mars is farthest from the Sun at about 74, which also corresponds to late fall in the southern hemisphere. During the period when Mars is farthest from the Sun, the migration of water vapor from the northern polar region combines with lowered atmospheric temperatures to produce conditions that allow formation of clouds such as seen in the image at PIA07105 [ http://photojournal.jpl.nasa.gov/catalog/PIA07105 ]. Opportunity is further north than Spirit is, so there is a distinct difference in the amount of water vapor available to form water-ice clouds over the two sites. To date, Spirit has not seen any discrete, cirrus-like clouds such as Opportunity has photographed. Although water vapor is expected to reach a maximum abundance for the Opportunity and Spirit sites near spring equinox (Ls 180 or about March 2005), the atmospheric temperatures will very likely have warmed sufficiently to prevent formation of the type of clouds that Opportunity has observed recently. |
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East Tharsis Pit Chain
PIA03987
Sol (our sun)
Mars Orbiter Camera
| Title |
East Tharsis Pit Chain |
| Original Caption Released with Image |
7 July 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark, windblown sand dunes in the caldera of Nili Patera, a volcanic crater in Syrtis Major. The dunes were formed by winds blowing from the northeast (upper right). "Location near": 16.0°N, 93.1°W"Image width": ~3 km (~1.9 mi) "Illumination from": lower left "Season" Northern Autumn |
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Frozen Frozen CO2
PIA03008
Sol (our sun)
Mars Orbiter Camera
| Title |
Frozen Frozen CO2 |
| Original Caption Released with Image |
2 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a view of frozen carbon dioxide in the south polar residual cap of Mars. Much of the south polar residual cap exhibits terrain that resembles stacks of sliced Swiss cheese, but this portion of the cap lacks the typical, circular depressions that characterize much of the region. Carbon dioxide on Mars freezes at a temperature of around 148 Kelvins, which is -125°C or about -193°F. "Location near": 87.2°S, 28.4°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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West Tithonium Scene
PIA03968
Sol (our sun)
Mars Orbiter Camera
| Title |
West Tithonium Scene |
| Original Caption Released with Image |
26 June 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark rippled surfaces and a patch of light-toned, perhaps sedimentary rock exposed on the floor of western Tithonium Chasma, part of the vast Valles Marineris trough system. "Location near": 5.0°S, 90.3°W "Image width": ~3 km (~1.9 mi) "Illumination from": lower left "Season" Southern Spring |
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West Arabia Barchans
PIA04101
Sol (our sun)
Mars Orbiter Camera
| Title |
West Arabia Barchans |
| Original Caption Released with Image |
16 July 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows small barchan dunes on the floor of a crater in western Arabia Terra. Similar dunes are found in most of the larger craters of the region. The steepest slopes on these dunes, their slipfaces, point toward the west-southwest, indicating that dominant winds blow from the east-northeast (upper right). "Location near": 10.9°N, 2.8°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Enhanced by Frost
PIA03006
Sol (our sun)
Mars Orbiter Camera
| Title |
Enhanced by Frost |
| Original Caption Released with Image |
30 September 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows outcrops of south polar layered terrain. Their appearance in this July 2005 springtime image is enhanced by bright patches of carbon dioxide frost. The frost is left over from the previous southern winter season, by summer, the frost would be gone. "Location near": 84.6°S, 203.5°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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Mars at Ls 306°: Tharsis
PIA03016
Sol (our sun)
Mars Orbiter Camera
| Title |
Mars at Ls 306°: Tharsis |
| Original Caption Released with Image |
4 October 2005 This picture is a composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) daily global images acquired at Ls 306° during a previous Mars year. This month, Mars looks similar, as Ls 306° occurs in mid-October 2005. The picture shows the Tharsis face of Mars. Over the course of the month, additional faces of Mars as it appears at this time of year are being posted for MOC Picture of the Day. Ls, solar longitude, is a measure of the time of year on Mars. Mars travels 360° around the Sun in 1 Mars year. The year begins at Ls 0°, the start of northern spring and southern autumn. "Season": Northern Winter/Southern Summer |
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Inverted Channels
PIA03004
Sol (our sun)
Mars Orbiter Camera
| Title |
Inverted Channels |
| Original Caption Released with Image |
18 September 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the inverted remains of several channels in a fan-like complex in the Aeolis region of Mars. The inverted channels are the flat-topped ridges that trend from lower right toward upper left (southeast to northwest). Other ridges, trending from lower left toward upper right (southwest to northeast) are yardangs, the products of wind erosion. The channels were inverted by erosion, as well -- the tops of these ridges were once the floor of the channels (or the tops of materials that filled the channels). "Location near": 5.1°S, 205.0°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Southern Spring |
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Dike near Auqakuh
PIA03037
Sol (our sun)
Mars Orbiter Camera
| Title |
Dike near Auqakuh |
| Original Caption Released with Image |
13 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a dike exhumed by erosion from beneath the cratered terrain near Auqakuh Vallis in northeastern Arabia Terra. The dike is the narrow, discontinuous ridge that cuts diagonally from the northwest (upper left) toward the southeast (lower right) across the scene. Typically, a dike is formed underground when molten rock -- "magma" -- is injected through a crack or fault. The magma eventually cools and hardens. A dike can also sometimes form in a non-volcanic setting by injection of wet sediment (which later hardens to rock) into an overlying sedimentary layer. The ridge is formed later, when surrounding rocks are eroded away, leaving the more erosion-resistant rock behind as a ridge. For an example on Earth, the famous Shiprock in northwestern New Mexico, U.S.A., has several dikes associated with it. "Location near": 31.4°N, 299.0°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Winter |
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South Polar Scene
PIA03020
Sol (our sun)
Mars Orbiter Camera
| Title |
South Polar Scene |
| Original Caption Released with Image |
8 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows two circular features in the south polar region of Mars. The circular features are degraded impact craters. The dark, irregular features in each crater are the remnants of a layer of material that probably once covered the entire scene, before being eroded away. All of the terrain in this image is covered by defrosting, seasonal carbon dioxide frost. "Location near": 79.5°S, 295.0°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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Martian Flows
PIA03021
Sol (our sun)
Mars Orbiter Camera
| Title |
Martian Flows |
| Original Caption Released with Image |
9 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows several overlapping lava flows located on the vast plains east of the volcano, Ascraeus Mons. Hundreds of lava flows cover the plains from Ascraeus Mons eastward to Kasei Valles. These flows have largely been mantled by fine dust, a few areas in the image exhibit dark streaks, where wind gusts have stripped away some of this thin dust mantle. "Location near": 5.2°N, 86.7°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Crater in Sabaeus
PIA03036
Sol (our sun)
Mars Orbiter Camera
| Title |
Crater in Sabaeus |
| Original Caption Released with Image |
12 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a portion of an old impact crater in the Sinus Sabaeus region of Mars, just south of the large impact basin, Schiaparelli. "Location near": 6.3°S, 341.7°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Southern Spring |
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Wind-Eroded Terrain
PIA03003
Sol (our sun)
Mars Orbiter Camera
| Title |
Wind-Eroded Terrain |
| Original Caption Released with Image |
17 September 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a wind-eroded terrain. The ridges that cut across the scene from the lower right toward upper left (southeast to northwest) are classic yardangs, a landform created by wind erosion. These are located in the Eumenides Dorsum region of Mars. "Location near": 5.5°N, 159.0°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Arabian Crater
PIA03018
Sol (our sun)
Mars Orbiter Camera
| Title |
Arabian Crater |
| Original Caption Released with Image |
6 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows an old impact crater in southeastern Arabia Terra. The crater ejecta blanket is no longer visible and all of the terrain has been covered by a mantle of dust. The dark streaks on the crater wall are the result of dry avalanches of dust, the darker streaks formed more recently than the lighter-toned streaks. Indeed, the darkest streak is likely to be less than a few years old. "Location near": 3.0°N, 315.6°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Defrosting South #2
PIA03007
Sol (our sun)
Mars Orbiter Camera
| Title |
Defrosting South #2 |
| Original Caption Released with Image |
1 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a second view of varied springtime defrosting patterns formed in a dune field and surrounding polygon-patterned ground in the south polar region of Mars. The previous view was featured as a MOC Picture of the Day on 20 August 2005 (PIA04162 [ http://photojournal.jpl.nasa.gov/catalog/PIA04162 ]). Both images show portions of the same terrain and occur within a few hundred meters of each other. The previous release explained that the feature sporting an outline of dark spots and an interior of smaller, closely-spaced dark spots and dark-outlined polygons is a patch of windblown or wind-eroded sand that was covered by carbon dioxide frost during the previous autumn and winter. The fainter, larger polygon pattern on either side of the patch of defrosting sand is formed in the substrate upon which the sand patch is sitting. Polygonal forms such as these might indicate the presence of ice below the surface. "Location near": 79.9°S, 125.9°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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Huygens Wind Streak
PIA03005
Sol (our sun)
Mars Orbiter Camera
| Title |
Huygens Wind Streak |
| Original Caption Released with Image |
19 September 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the results of wind action on the floor of the giant martian impact basin, Huygens. The large crater in this image has a wind streak on its lee side, pointing toward the lower right (southeast). Usually, a light-toned wind streak behind a crater on Mars will be composed of a thin veneer of dust that the wind was not able to erode because it was protected by the presence of the crater's raised rims. In this case, the streak is caused by something different -- by the fact that dark, windblown sand has not been able to accumulate behind the crater. "Location near": 13.0°S, 303.7°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Southern Spring |
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Mars at Ls 306°: Acidalia/Ma
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PIA03027
Sol (our sun)
Mars Orbiter Camera
| Title |
Mars at Ls 306°: Acidalia/Mare Erythraeum |
| Original Caption Released with Image |
11 October 2005 This picture is a composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) daily global images acquired at Ls 306° during a previous Mars year. This month, Mars looks similar, as Ls 306° occurs in mid-October 2005. The picture shows the Acidalia/Mare Erythraeum face of Mars. Over the course of the month, additional faces of Mars as it appears at this time of year are being posted for MOC Picture of the Day. Ls, solar longitude, is a measure of the time of year on Mars. Mars travels 360° around the Sun in 1 Mars year. The year begins at Ls 0°, the start of northern spring and southern autumn. "Season": Northern Winter/Southern Summer |
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Volcanic Pit Chain
PIA03017
Sol (our sun)
Mars Orbiter Camera
| Title |
Volcanic Pit Chain |
| Original Caption Released with Image |
5 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a chain of collapse pits on the lower south flank of Ascraeus Mons. Pit chains such as this are the result of collapse along fault lines. In this case, before the collapses occurred, the fault was a conduit for molten rock -- magma -- which erupted to form a suite of lava flows (now covered by mantles of dust) that can be seen radiating away from the pit at the center of the image. "Location near": 7.2°N, 104.3°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Wind Streak in Daedalia
PIA03050
Sol (our sun)
Mars Orbiter Camera
| Title |
Wind Streak in Daedalia |
| Original Caption Released with Image |
20 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a wind streak formed in the lee of an impact crater in western Daedalia Planum. "Location near": 12.7°S, 136.6°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Southern Spring |
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Exhuming Landforms
PIA03071
Sol (our sun)
Mars Orbiter Camera
| Title |
Exhuming Landforms |
| Original Caption Released with Image |
26 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a crater and adjacent terrain that have been exhumed from beneath a wind-eroded material. The sharp, pointy ridges inside and immediately adjacent to the crater are the remains of a material that once covered the entire scene. Wind has stripped these materials away, forming yardangs. Inside the crater, the erosion has revealed an older, eroded layered material. This smooth-surfaced layered feature inside the crater was already eroded to nearly its present shape before the yardang-forming material was deposited (and then eroded away). "Location near": 7.2°N, 156.4°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Winter |
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Sirenum Fossae Troughs
PIA03051
Sol (our sun)
Mars Orbiter Camera
| Title |
Sirenum Fossae Troughs |
| Original Caption Released with Image |
21 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows two troughs/depressions formed along the trend of the Sirenum Fossae, a suite of very extensive troughs formed by faults that are radial to the giant Tharsis Bulge. As the Tharsis region bulged outward, adjacent terrain expanded and formed a series of long, extensional fault systems. "Location near": 26.4°S, 142.4°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Southern Spring |
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Cerberus Flood Features
PIA03043
Sol (our sun)
Mars Orbiter Camera
| Title |
Cerberus Flood Features |
| Original Caption Released with Image |
16 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows streamlined landforms carved by catastrophic floods that occurred in the eastern Cerberus region, some time in the distant martian past. "Location near": 15.1°N, 193.5°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Mars at Ls 306°: Elysium/Mar
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PIA03069
Sol (our sun)
Mars Orbiter Camera
| Title |
Mars at Ls 306°: Elysium/Mare Cimmerium |
| Original Caption Released with Image |
25 October 2005 This picture is a composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) daily global images acquired at Ls 306° during a previous Mars year. This month, Mars looks similar, as Ls 306° occurred in mid-October 2005. The picture shows the Elysium/Mare Cimmerium face of Mars. Over the course of the month, additional faces of Mars as it appears at this time of year are being posted for MOC Picture of the Day. Ls, solar longitude, is a measure of the time of year on Mars. Mars travels 360° around the Sun in 1 Mars year. The year begins at Ls 0°, the start of northern spring and southern autumn. "Season": Northern Winter/Southern Summer |
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Mars at Ls 306°: Syrtis Majo
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PIA03045
Sol (our sun)
Mars Orbiter Camera
| Title |
Mars at Ls 306°: Syrtis Major |
| Original Caption Released with Image |
18 October 2005 This picture is a composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) daily global images acquired at Ls 306° during a previous Mars year. This month, Mars looks similar, as Ls 306° occurs in mid-October 2005. The picture shows the Syrtis Major face of Mars. Over the course of the month, additional faces of Mars as it appears at this time of year are being posted for MOC Picture of the Day. Ls, solar longitude, is a measure of the time of year on Mars. Mars travels 360° around the Sun in 1 Mars year. The year begins at Ls 0°, the start of northern spring and southern autumn. "Season": Northern Winter/Southern Summer |
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Martian Lava Flows
PIA03049
Sol (our sun)
Mars Orbiter Camera
| Title |
Martian Lava Flows |
| Original Caption Released with Image |
19 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows lava flows at the southeast base of the giant volcano, Olympus Mons. The flat plain in the south-southeast (bottom/lower right) portion of the image is younger than and cuts off the ends of many of the lava flows that came from the northwest (upper left). Many of the lava flows in this image exhibit channels with levees bounding their margins. As each lava flow was advancing, its outer margins cooled and hardened, forming a channel or tube through which the molten rock continued to advance. "Location near": 17.2°N, 129.0°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Winter |
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Zephyria Platy Flows
PIA03066
Sol (our sun)
Mars Orbiter Camera
| Title |
Zephyria Platy Flows |
| Original Caption Released with Image |
22 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows the broken, platy texture of flow surfaces in the Zephyria region of Mars. Some investigators have suggested that these materials represent the remains of an ice-covered lake, others suggest that these are the surfaces of hardened lava that -- when it was erupting -- was very hot and fluid. Although not illustrated here, a key piece of evidence against the ice-covered lake hypothesis is that there are some small craters formed on these surfaces (one can be seen in the lower left/southwest corner), and some of them have boulders in their ejecta. The boulders indicate that the material is rock-solid. "Location near": 5.3°N, 208.6°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Flows in Kasei
PIA03073
Sol (our sun)
Mars Orbiter Camera
| Title |
Flows in Kasei |
| Original Caption Released with Image |
28 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows flow materials-on the east/right side of the image-that have come in among a suite of sharp ridges and grooves on the floor of the vast Kasei Valles system. The ridges and grooves are much older and are believed to be the result of a giant, catastrophic flood. The flows might have been mud or lava that ran part way down the ancient valley at a later date. "Location near": 16.7°N, 76.5°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Winter |
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Crater and Flows
PIA03074
Sol (our sun)
Mars Orbiter Camera
| Title |
Crater and Flows |
| Original Caption Released with Image |
29 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a crater surrounded by thin flows in southeastern Kasei Valles. The flows might have been lava or mud. The picture was acquired in August 2005. "Location near": 14.2°N, 75.1°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": left/lower left "Season": Northern Autumn |
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Filled/Eroded Craters
PIA03038
Sol (our sun)
Mars Orbiter Camera
| Title |
Filled/Eroded Craters |
| Original Caption Released with Image |
14 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows rugged terrain in northern Arabia Terra. The circular features are the remains of old meteor impact craters -- either the eroded remnants of the interiors of craters, or the remains of craters that were filled by layered material. The martian bedrock has craters of all sizes and states of erosion interbedded with its layered materials. "Location near": 31.4°N, 299.0°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Winter |
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East Arabia Mesas
PIA03075
Sol (our sun)
Mars Orbiter Camera
| Title |
East Arabia Mesas |
| Original Caption Released with Image |
30 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows mesas and other eroded landforms in eastern Arabia Terra, near Huo Hsing Vallis. Arabia Terra is generally a cratered terrain that has been severely eroded, although the causes of the erosion -- and where all the material went when it was removed -- are not known. "Location near": 27.3°N, 293.2°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Summer |
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East Arabia Scene
PIA03067
Sol (our sun)
Mars Orbiter Camera
| Title |
East Arabia Scene |
| Original Caption Released with Image |
23 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows mesas in northeastern Arabia Terra. This heavily-cratered region of Mars has been severely eroded, although very little evidence regarding the erosive processes has been preserved. "Location near": 26.9°N, 293.5°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Defrosting Terrain
PIA03098
Sol (our sun)
Mars Orbiter Camera
| Title |
Defrosting Terrain |
| Original Caption Released with Image |
9 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a south polar scene, covered by bright, seasonal, carbon dioxide frost. The dark patches are areas where the frost has begun to sublime away. "Location near": 80.0°S, 334.0°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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Isidis Planitia
PIA03087
Sol (our sun)
Mars Orbiter Camera
| Title |
Isidis Planitia |
| Original Caption Released with Image |
3 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a cratered surface in Isidis Planitia, a martian lowland. Light-toned "squiggles" in this August 2005 image are large windblown ripples. "Location near": 10.6°N, 275.2°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Russell Dune Gullies
PIA03089
Sol (our sun)
Mars Orbiter Camera
| Title |
Russell Dune Gullies |
| Original Caption Released with Image |
5 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows gullies and dust devil streaks on the slopes of a large dune in Russell Crater. Gullies on martian dunes typically occur only in the Noachis Terra region, and almost exclusively form on southward-facing slopes. They might be the result of downslope movement of sand mixed with a fluid such as carbon dioxide gas or water that had been trapped as ice in the dune. "Location near": 54.6°S, 347.2°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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Terby's Layers
PIA03085
Sol (our sun)
Mars Orbiter Camera
| Title |
Terby's Layers |
| Original Caption Released with Image |
2 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows light-toned, layered, sedimentary rock exposures in Terby Crater, just north of Hellas Planitia. These rocks might have formed from sediment deposited in a lake or a larger Hellas-filling sea. "Location near": 28.0°S, 285.4°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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Mars at Ls 324°: Acidalia/Ma
…
PIA03097
Sol (our sun)
Mars Orbiter Camera
| Title |
Mars at Ls 324°: Acidalia/Mare Erythraeum |
| Original Caption Released with Image |
8 November 2005 This picture is a composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) daily global images acquired at Ls 324° during a previous Mars year. This month, Mars looks similar, as Ls 324° occurs in mid-November 2005. The picture shows the Acidalia/Mare Erythraeum face of Mars. Over the course of the month, additional faces of Mars as it appears at this time of year are being posted for MOC Picture of the Day. Ls, solar longitude, is a measure of the time of year on Mars. Mars travels 360° around the Sun in 1 Mars year. The year begins at Ls 0°, the start of northern spring and southern autumn. "Season": Northern Winter/Southern Summer |
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South Polar Mesas
PIA03076
Sol (our sun)
Mars Orbiter Camera
| Title |
South Polar Mesas |
| Original Caption Released with Image |
31 October 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows irregular-shaped mesas in the south polar region of Mars. The bright patches are the remains of seasonal frost. During winter and most of spring, this entire scene would have been covered by carbon dioxide frost. "Location near": 79.2°S, 298.6°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": upper left "Season": Southern Spring |
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Herschel's Dunes
PIA03099
Sol (our sun)
Mars Orbiter Camera
| Title |
Herschel's Dunes |
| Original Caption Released with Image |
10 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows dark, windblown sand dunes in Herschel Crater. The winds responsible for these dunes came from the northeast (upper right). "Location near": 15.6°S, 228.6°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Southern Spring |
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Mars at Ls 324°: Tharsis
PIA03077
Sol (our sun)
Mars Orbiter Camera
| Title |
Mars at Ls 324°: Tharsis |
| Original Caption Released with Image |
1 November 2005 This picture is a composite of Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) daily global images acquired at Ls 324° during a previous Mars year. This month, Mars looks similar, as Ls 324° occurs in mid-November 2005. The picture shows the Tharsis face of Mars. Over the course of the month, additional faces of Mars as it appears at this time of year are being posted for MOC Picture of the Day. Ls, solar longitude, is a measure of the time of year on Mars. Mars travels 360° around the Sun in 1 Mars year. The year begins at Ls 0°, the start of northern spring and southern autumn. "Season": Northern Winter/Southern Summer |
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Sedimentary Rocks
PIA03090
Sol (our sun)
Mars Orbiter Camera
| Title |
Sedimentary Rocks |
| Original Caption Released with Image |
6 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows outcrops of sedimentary rocks in a crater located just north of the Sinus Meridiani region. Perhaps the crater was once the site of a martian lake. "Location near": 2.9°N, 359.0°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Impact Crater
PIA03091
Sol (our sun)
Mars Orbiter Camera
| Title |
Impact Crater |
| Original Caption Released with Image |
7 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a meteor impact crater in northern Tharsis. This crater is a bit more than 2 kilometers wide -- about twice the size of the famous Meteor Crater in northern Arizona, U.S.A. Many smaller craters can be seen superimposed upon the ~2 km diameter crater. "Location near": 34.4°N, 118.8°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Ophir Landslide
PIA03088
Sol (our sun)
Mars Orbiter Camera
| Title |
Ophir Landslide |
| Original Caption Released with Image |
4 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a small landslide off a steep slope in southwestern Ophir Chasma. "Location near": 4.6°S, 72.8°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Southern Spring |
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Dust-covered Flow
PIA03547
Sol (our sun)
Mars Orbiter Camera
| Title |
Dust-covered Flow |
| Original Caption Released with Image |
17 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows an ancient lava flow surface near the volcano, Ascraeus Mons. The volcanic material has been completely covered by thick accumulations of dust. An earlier accumulation of dust or ash was eroded by wind to form the sharp, nearly triangular hills and ridges seen on top of the flow surfaces. A small impact crater with bouldery ejecta has formed on top of the old flow material in the southern (lower) quarter of the image. "Location near": 8.5°N, 110.5°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Crater Interior
PIA03572
Sol (our sun)
Mars Orbiter Camera
| Title |
Crater Interior |
| Original Caption Released with Image |
30 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows complexly-eroded terrain within a partially-filled impact crater in Noachis Terra. "Location near": 48.5°S, 336.2°W "Image width": width: ~3 km (~1.9 mi)"Illumination from": upper left "Season": Southern Summer |
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Small Yardangs
PIA03546
Sol (our sun)
Mars Orbiter Camera
| Title |
Small Yardangs |
| Original Caption Released with Image |
16 November 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows small yardangs formed by wind erosion of a material that once completely covered everything in this scene. These landforms are located in southern Amazonis Planitia. "Location near": 8.1°N, 151.6°W "Image width": width: ~3 km (~1.9 mi) "Illumination from": lower left "Season": Northern Autumn |
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Daedalia Streak
PIA03573
Sol (our sun)
Mars Orbiter Camera
| Title |
Daedalia Streak |
| Original Caption Released with Image |
1 December 2005 This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a dark wind streak formed in the lee of a crater in Daedalia Planum. The winds responsible for the streak blew from right (east) to left (west). "Location near": 11.7°S, 136.4°W "Image width": width: ~3 km (~1.9 mi)"Illumination from": lower left "Season": Southern Summer |
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