| Ultimi arrivi - A Tribute To Mars Global Surveyor |
Tithonium_Chasma-MGS-PCF-LXTT-2.jpgTithonium Chasma (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)257 visitenessun commentoMareKromiumMag 10, 2011
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Craters-Unnamed_Crater_with_Tiled_Floor-MGS-PCF-LXTT.jpgUnnamed Crater in Vastitas Borealis (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit) 216 visiteCaption NASA originale:"This MGS-MOC image shows Polygonal Cracks formed in the material that nearly fills an Impact Crater on the Martian Northern Plains. The light-toned patches in the Cracks are the remains of Ice, left over from the preceding Winter.
On Earth, Polygons such as these are most common in the Polar Regions and form in the presence of ground ice. Whether the same is true for Mars remains to be determined, but, certainly, this is a good possibility".
Location near: 65,7° North; 277,5° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring MareKromiumApr 04, 2011
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South_Polar_Features-Crater_with_Ice-A-M1000628-02.jpgUnnamed South Polar Crater with residual Ice (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)437 visitenessun commentoMareKromiumMar 06, 2011
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South_Polar_Features_-_The_Lake-A1-M0901354-02.jpgSouth Polar "Pseudo-Lake" (False Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)301 visitenessun commentoMareKromiumMar 06, 2011
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Sysiphi_Planum-MGS-PCF-LXTT-01.jpgSeeps in Sysiphi Planum (Absolute Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)727 visitenessun commentoMareKromiumFeb 26, 2011
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Craters-Unnamed_Crater-AB107707-00-PCF-LXTT.jpgUnnamed Crater with wide Dunefield (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)84 visitenessun commentoMareKromiumFeb 14, 2011
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Volcanoes-Arsia_Mons-PIA07298-PCF-LXTT.jpgLayering in Arsia Mons (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 88 visitenessun commentoMareKromiumFeb 06, 2011
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Echus_Chasma-PIA08022-2-PCF-LXTT.jpgEchus Chasma (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)70 visitenessun commentoMareKromiumFeb 05, 2011
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South_Polar_Regions-SPRC.jpgSublimation at the South Polar Residual Cap (Absolute Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)97 visiteCaption NASA:"This MGS-MOC image shows a portion of the South Polar Residual Cap where the effects of Sublimation are apparent.
Over extended periods of time, Sublimation "eats" away at the smoother appearing material (largely composed of frozen CO2), darkening the Scarps and creating the irregularly shaped depressions that are present throughout much of the scene".
Location near: 87,1° South Lat. and 69,3° West Long.
Image width: ~3 Km (~1,9 miles)
Illumination from: upper left
Season: Southern SummerMareKromiumFeb 01, 2011
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Chaotic_Terrain-Iani_Chaos-MGS.jpgFeatures of Iani Chaos (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)98 visitenessun commentoMareKromiumGen 20, 2011
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South_Polar_Regions-PIA03007.jpgDefrosting South Polar Region (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)109 visiteDefrosting Southern Regions
Original caption:"This MGS-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 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 SpringMareKromiumNov 24, 2010
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South_Polar_Regions-PIA04162.jpgDefrosting South Polar Region (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)113 visiteOriginal caption:"This MGS-MOC image shows varied springtime patterns formed in defrosting, seasonal carbon dioxide frost in the South Polar Region of Mars. 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: 79,6°S; 125,0°W
Image width: width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern SpringMareKromiumNov 24, 2010
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