| Piú viste - A Tribute To Mars Global Surveyor |
Craters-Unnamed_South_Polaer_Buried_Crater-PIA04147.jpgFilled and Buried Unnamed Crater in the South Polar Region (Original NASA/MGS/MSSS b/ Frame)54 visiteOriginal caption:"This MGS-MOC image shows a Circular Depression and a suite of eroding Mesas of CO2 - features occuring in the South Polar Residual Cap of Mars. The eroding CO2 creates landforms reminiscent of 'Swiss Cheese'. The Circular Feature might indicate the location of a filled, Buried Impact Crater".
Location near: 86,8° South Lat. and 111,0° West Long.
Image width: width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Spring
|
|
Channels-Inverted_Channels_in_Arabia_Terra-PIA03643-00.jpgInverted channels of Arabia Terra (1 - Original NASA/MGS/MSSS b/w Frame)54 visiteOriginal caption:"This MGS-MOC image shows a somewhat sinuous, nearly flat-topped Ridge, located in Eastern Arabia Terra. The ridgetop was once the Floor of a Valley, perhaps carved by running water. The Valley Floor, or material that covered the Floor, was more resistant to erosion than the surrounding rock into which the Valley was cut. Thus, over time, the Valley disappeared and its Floor was left standing high as a Ridge. Inverted Valleys are common on Mars, but they also occur on Earth".
Location near: 10,8° North Lat. and 313,2° West Long.
Image width: width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Winter
|
|
Craters-Unnamed_Craters-Utopia_Planitia-00.jpgOld Buried Unnamed Craters in Northern Utopia Planitia (Original NASA/MGS/MSSS b/w Frame)54 visiteOriginal caption:"This MGS-MOC image shows 2 circular features on the Plains of Northern Utopia. A common sight on the Martian Northern Plains, these rings indicate the locations of Buried Impact Craters".
Location near: 65,1° North Lat. and 261,2° West Long.
Image width: ~2 Km (~1,2 mi)
Illumination from: lower left
Season: Northern Summer
|
|
Volcanic_Features-Lava_or_Mud_Flows-00.jpgControversial Features of Zephyria Planum (Original NASA/MGS/MSSS b/w Frame)54 visiteOriginal caption:"This MGS-MOC image shows a portion of a shallow Channel carved in the Plains of the Zephyria Region of Mars. This feature might be the result of the passing of either extremely fluid Lava or, perhaps, Mud".
Location near: 5,1° North Lat. and 203,7° West Long.
Image width: ~3 Km (~1.9 mi)
Season: Northern Winter
|
|
Chaotic_Terrain-Eos_Chaos-02.jpgFeatures of Eos Chaos: High Slope (Original NASA/MGS/MSSS b/w Frame - 2)54 visiteLocation near: 12,9° South Lat. and 49,5° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Southern Summer
|
|
Craters-Terby_Crater-01.jpgThe Sedimentary Layers of Terby Crater (1 - Original NASA/MGS/MSSS b/w Frame)54 visiteOriginal caption:"This MGS-MOC image shows some of the light-toned, layered, Sedimentary Rock Outcrops in Northern Terby Crater. Terby is located along the North edge of Hellas Planitia. The Sedimentary Rocks might have been deposited in a greater, Hellas-filling sea — or not. Today, the rocks are partly covered by dark-toned Sediment and Debris".
Location near: 27,2° South Lat. and 285,3° West Long.
Image width: ~3 km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
|
|
Craters-Lyell_Crater-00.jpgLyell Crater's Gullies (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption originale:"This MGS-MOC image shows a suite of Gullies on a Scarp in Lyell Crater".
Location near: 69,7° South Lat. and 14,0° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
|
|
Craters-Unnamed_Crater_with_Pedestal-PIA08029.jpgUnnamed Pedestal Crater in Promethei Terra (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows a Pedestal Crater in the Promethei Terra Region. The Ejecta from an impact crater is usually rocky. The rocks in the Ejecta help shield the Terrain beneath the Ejecta from being eroded away by Wind. Thus, over time, some Craters appear to be raised on Pedestals defined by their Ejecta Blankets, because Wind has stripped away tons and tons of surrounding material".
Location near: 65,4° South Lat. and 264,7° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Autumn
Nota: un altro (relativamente) famoso cratere con (o su) piedistallo si trova su Venere ed è conosciuto con il nome di Cratere Adivar.
|
|
Craters-Unnamed_South_Polar_Crater-2.jpgBuried and frozen (2)54 visitenessun commento
|
|
Craters-Unnamed_Crater-Layered_Outcrop-Thaumasia_Region-00.jpgLayered Rocky Outcrops (Original NASA/MGS/MSSS b/w Frame)54 visiteCaption NASA originale:"This MGS-MOC image shows light-toned, layered rock outcrops in the central pit of an impact crater in the Thaumasia Planum Region of Mars. The outcrops were tilted and broken-up by the extreme energy of the impact that formed the crater in which they occur. These are layers of rock that were brought up by the impact from horizontal beds that lie below the floor of the crater".
Location near: 21,7° South Lat. and 69,4° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
Nota: difficile pensare, per spiegare i rilievi catturati in questo frame, ad una costruzione logica più improbabile di quella proposta dalla NASA...
|
|
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
|
|
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
|
|
| 512 immagini su 43 pagina(e) |
 |
|
|
|
|
|
|
|
41 | |
|
