| Piú viste - A Tribute To Mars Global Surveyor |
Craters-Unnamed_Crater-Terra_Cimmeria.JPGUnnamed Crater with Gullies in Terra Cimmeria (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows an array of gullies in the North-NorthWest wall of a crater in Terra Cimmeria. These features may have been formed through the interaction of several processes including, but not limited to, mass wasting and/or seepage and runoff of groundwater".
Location near: 33,5° South Lat. and 207,2° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
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South_Polar_Features-Swiss_Cheese_Terrain-01.jpgSummertime at the South Pole (1)54 visiteCaption originale NASA:"This MGS-MOC image shows an undulating scene in the South Polar Region of Mars. Small, elevated mesas of smooth, relatively homogeneous-appearing material are separated by low-lying regions that are speckled and darkened in some local areas. Over the Martian Summer months, sublimation of solid carbon dioxide — the bright material in the scene — contributes to the darkening of the sides of the mesas as well as the low-lying regions between them".
Location near: 86,8° South; 341,3°West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
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South_Polar_Features-Swiss_Cheese_Terrain-02.jpgSummertime at the South Pole (2)54 visitenessun commento
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Volcanic_Features-Channels-Tharsis_Region-00.JPGChannels on Lava Flows in Tharsis (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows ancient, Dust-covered Lava Flows and remains of leveed Lava Channels located on a Plain North/West of Jovis Tholus.
Jovis is a relatively small volcano in the Tharsis Region of Mars".
Location near: 22,4° North Lat. and 122,0° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Winter
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South_Polar_Features-Swiss_Cheese_Terrain-03.jpgThe "drawings" of the South Polar Residual Cap (1)54 visiteCaption NASA originale:"This MGS-MOC image shows a Summertime view of the South Polar Residual Cap of Mars. In this image, mesas composed largely of solid Carbon Dioxide are separated from one another by irregularly-shaped depressions. The variation in brightness across this scene is a function of several factors including, but not limited to, varying proportions of dust and solid Carbon Dioxide, undulating topography, and differences in the roughness of the slopes versus the flat surfaces".
Location near: 86,7° South; 343,3° West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
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Clouds-Hellas_Planitia-MGS.JPGHeavy Dusty Clouds obscuring Hellas Planitia (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows billowing clouds of dust rising from a storm South-East of Hellas Planitia.
The dust storm in this case obscured the Mars Orbiter Camera's view of the Martian Surface".
Location near: 62,2° South; 259,0° West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Autumn
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Craters-Galle_Crater-3D.jpgLayers of Galle Crater (3D - credits: NASA/JPL/MSSS)54 visiteCaption NASA:"This is a 3-D stereo anaglyph showing layers in Galle Crater. This anaglyph uses two MGS-MOC images acquired at slightly different viewing angles: MOC images E22-01557 and M14-02055. Owing to the specifics of the viewing geometry, the image is tilted on its side, relative to the mosaic shown in the 15 June 2006 release. In other words, in this image, North is toward the right and West is up. This anaglyph, when viewed in conjunction with the 15 June 2006 mosaic of these layers, provides a more complete sense of the cross-cutting relations between layers in the mound located in southern Galle (Happy Face) Crater. The layers are part of a mound of sedimentary rock in southern Galle — a remnant of a once more-extensive deposit of sedimentary material in this south mid-latitude impact basin.
Location near: 52,3° South Lat. and 30,1° West Long.
Image width: ~7,3 Km (~4,5 mi)
Illumination from: upper right
Anaglyph from MOC images: E22-01557 and M14-02055
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Troughs-Labeatis_Fossae-MGS.jpgDeep Trough in Labeatis Fossae (Original NASA-MGS-MSSS b/w Frame) 54 visiteCaption NASA originale:"This MGS-MOC image shows a portion of a trough cutting across a dust-covered plain in the Labeatis Fossae Region of Mars. Boulders derived from the layered exposures near the top of the trough walls are resting on the floor, and in some locations, the sloping sidewalls of the dusty trough".
Location near: 22,1° North; 94,5° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
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Craters-Unnamed_Craters-Syrtis_Major.jpgUnnamed Craters in Syrtis Major Planum (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows a portion of Syrtis Major Planum, dominated in this area by two Impact Craters of differing age. The large one is about 1,3 Km (approx. 0,8 miles) in diameter, the smaller is about 250 mt (~820 feet) across.
The smaller Unnamed Crater has a well-defined Ejecta Blanket and Rays emanate outward from its center. The larger Unnamed Crater does not exhibit these features. The larger one is older, and its Ejecta Blanket and Rays have been removed and degraded over time".
Location near: 5,4° North; 294,2° West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Northern Spring
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Controversial_Features-The_Bridges_of_Meroe_Patera-MGS-1.jpgThe "White Bridges" of Meroe Patera (Original NASA/MGS/MSSS CTX b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows terrain South-West of Meroe Patera in Syrtis Major Planum, Mars. Wind streaks formed in the "lee" (the downwind side) of impact craters are common throughout the scene, including the small impact crater near the center of the image with light-toned ejecta radiating outward from its rim.
Near the South (Dx) of the image, 3 light-toned slope streaks, created by dry mass movements of dust, extend down the sloping side walls of two overlapping impact craters".
Location near: 5,3° North; 295,4° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Winter
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South_Polar_Features-Fans-PIA08658.jpgSouth Polar Fans (Original NASA/MGS/MSSS b/w Frames)54 visiteCaption NASA originale:"Dark spots (left) and 'Fans' appear to scribble dusty hieroglyphics on top of the Martian South Polar Cap in two High-Resolution MGS-MOC images taken in Southern Spring. Each image is about 3-Km wide".
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North_Polar_Features-Unconformity-MGS-01.jpgNorth Polar "Unconformity" (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows layered material exposed on a slope in the North Polar Region.
An "unconformity" is visible in the middle/lower left of the image, where layers are abruptly truncated. Unconformities are indicators of drastic change in the Region — the lower layers were deposited first, then eroded, then the upper layers were deposited".
Location near: 81,1° North Lat. and 75,2° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
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