A Tribute To Mars Global Surveyor
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South_Polar_Features-Residual_Cap.JPGSouth Polar "Shoreline" (Original NASA/MGS/MSSS b/w Frame)63 visiteCaption NASA originale:"This MGS-MOC image shows the very edge of the South Polar Residual Cap of Mars. The bright areas, which appear somewhat like pieces of sliced "Swiss cheese", are composed mainly of frozen Carbon Dioxide. The Scarps around the edges of the Carbon Dioxide mesas have been retreating at a rate of roughly 3 mt (~3 yards) per Martian Year; in this case, exposing a darker surface that lies below".
Location near: 85,4° South; 88,6° West
Image width: ~3 km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
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South_Polar_Features-South_Polar_Cap-PIA04287.jpgThe South Pole of Mars (Original NASA/MGS/MSSS b/ Frame)55 visiteOn 8 September 2005 (UT), the MGS-MOC resumed imaging of Mars after a nearly 2-week hiatus to recover the spacecraft from a glitch that put MGS into a protective "safe mode". The MOC was turned on during MGS orbit 29053, while the spacecraft was flying across day side of the Planet. MOC then resumed taking pictures on the next orbit. Shown here is a portion of the first picture acquired following MOC turn-on. The image shows a view of the Martian South Polar Region, as it appeared on September 8, 2005. The image was taken by MOC's red wide angle camera. In this case, the spacecraft began imaging Mars as it passed across the southern terminator, at the bottom of the image. MGS then flew southward, over the Polar Cap, then northward toward the Equator. The Equatorial Region is further north than the area shown here. The equatorial region is further north than the area shown here. The image not only provided the MOC team a confirmation that MOC imaging has resumed, this particular image, in the map-projected form shown here, is being used by the team to assist in setting the exposures for MOC narrow angle camera images that will be acquired from the south polar region over the next several days.
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South_Polar_Features-Spiders-00.jpgSpiderland (Original NASA/MGS/MSSS b/w Frame)55 visiteCaption originale:"This MGS-MOC image shows an area adjacent to the South Polar Residual Cap that hosts several intricate fracture networks. Each network consists of multiple fractures radiating from a central location. Their origin is not understood - some investigators have speculated that these are sites of release of carbon dioxide from beneath the ground, but this explanation seems inadequate to explain all attributes of the features.
MOC images have shown that these features have not been changing from year to year during the course of the MGS mission".
Location near: 87,1° South Lat. and 234,1° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
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South_Polar_Features-Spiders-01.JPGSpiderland (Original NASA/MGS/MSSS b/w Frame)53 visiteCaption originale:"This MGS-MOC image shows Cracked Surfaces in the South Polar Layered Terrain of Mars. The Cracks in this scene have formed complex dendritic arrays. Evidence of the Fracture Networks is clear in the topmost Layer; however, close inspection reveals traces of apparently older Networks in the underlying Layers".
Location near: 79,1° South Lat. and 194,2° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
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South_Polar_Features-Summer-01.jpgSouth Polar Summer (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)96 visitenessun commentoMareKromium
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South_Polar_Features-Summer-02.jpgSouth Polar Summer (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)91 visitenessun commentoMareKromium
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South_Polar_Features-Swiss_Cheese-PCF-LXTT.jpgSouth Polar Features: Swiss-Cheese Terrain (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)94 visitenessun commentoMareKromium
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South_Polar_Features-Swiss_Cheese.gifGlobal Warming on Mars (GIF-Movie; credits: Mars Unearthed)56 visitenessun commentoMareKromium
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South_Polar_Features-Swiss_Cheese_Terrain-00.JPGEarly Fall at the South Pole53 visiteCaption NASA originale:"This MGS-MOC image shows a portion of the South Polar Residual Cap. The darkened edges of the pits and mesas are evidence of the removal — by sublimation — of frozen CO2 during the recent Martian Summer.
Summer ended and Autumn began in January 2006, shortly before this image was acquired".
Location near: 86,8° South; 90,5° 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-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)53 visitenessun commento
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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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