| Piú viste - A Tribute To Mars Global Surveyor |
Controversial_Features-The_D_M_Pyramid-02.jpgThe D&M Pyramid (Original NASA/MGS/MSSS b/w Frame)159 visiteCaption NASA originale:"The mosaics shows a Cydonia landform popularly known as the "D&M Pyramid." It is located near 40.7N, 9.6W. Although it is not really shaped like a pyramid, the Cydonia landform is 1 of thousands of massifs, buttes, mesas, knobs and blocks that mark the transition from the far northwestern Arabia Terra cratered highlands down to the northeastern Acidalia Planitia lowlands. Each block, whether shaped like a face, a pyramid, or simply a mesa, massif or knob, is a remnant of the bedrock of northeastern Arabia that was left behind as erosion slowly degraded the terrain along this zone between the highlands and the lowlands. A few outcroppings of layers in this ancient bedrock can be seen in the mosaic of the pyramid-like landform shown here; much of the landform is covered with eroded mantling material that was deposited long after this highlands remnant became an isolated feature in Cydonia".
Lunar Explorer, questa volta, concorda pienamente con quanto riportato nella caption NASA.
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Acidalia_Planitia-Unusual_Landforms-M0300102-PCF-LXTT-00.jpgUnusual Landforms in Acidalia Planitia (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)159 visitenessun commentoMareKromium
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Volcanic_Features-Plume-Tharsis-PIA04285.jpgAn isolated "Water Ice Cloud" over Tharsis or a volcanic "Plume"? (Saturated Natural Colors; credits: NASA/JPL/MSSS)158 visiteOriginal caption:"This composite of red and blue MGS-MOC daily global images acquired on 6 July 2005 shows an isolated water ice cloud extending more than 30 Km (more than 18 miles) above the Martian surface. Clouds such as this are common in late Spring over the terrain located South-West of the Arsia Mons volcano. Arsia Mons is the dark, oval feature near the limb, just to the left of the "T" (in the "Tharsis Montes" label).
The dark, nearly circular feature above the "S" (in "Tharsis") is the Pavonis Mons Volcano and the other dark circular feature, above and to the right of "S" in "Montes," is Ascraeus Mons.
Illumination is from the left/lower left.
Season: Northern Autumn/Southern Spring".
Nota: purtroppo non ci sono vulcanologi nel Gruppo Lunar Explorer, ma la sensazione (nulla di pi) che la "isolata nuvola di ghiaccio d'acqua", come la chiama la NASA sia, in realt, il residuo di un evento vulcanico, molto intensa (confrontate la sua forma con qualcuna delle "volcanic plumes" di Io...).
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Tithonium_Chasma-PIA03968-PCF-LXTT-01.jpgFeatures of Tithonium Chasma (Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)158 visiteCaption NASA originale:"This MGS-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 Canyon System".
Location near: 5,0 South Lat. and 90,3 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season Southern SpringMareKromium
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Craters-Unnamed_Buried_Craters-MGS-PIA06855-01.jpgUnnamed Buried Craters in Utopia Planitia (Enhanced Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)158 visiteCaption NASA:"This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a cracked Plain in Western Utopia Planitia. The three circular crack patterns indicate the location of three buried Unnamed Impact Craters. These landforms are located near 41,9 North Lat. and 275,9 West Long. The image covers an area approximately 3 km (about 1,9 mi) across. Sunlight illuminates this scene from the lower left".MareKromium
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Acidalia_Planitia-Unusual_Landforms-M0300102-PCF-LXTT-03.jpgUnusual Landforms in Acidalia Planitia (EDM n.3 - Enhanced Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)155 visitenessun commentoMareKromium
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Craters-Gusev_Crater-R1300473_474.jpgGusev Crater Landscape from MGS (Extremely Enhanced Natural Colors; credits:NASA/JPL-MSSS)154 visiteSi tratta di un'immagine a colori ad HD semplicemente fantastica, ottenuta dalla Sonda Mars Global Surveyor e relativa (in parte) all'area di lavoro di Spirit. Abbiamo scelto di mostrarVi questo frame per almeno 3 buoni motivi: 1) perch si tratta di un frame bellissimo; 2) perch ci fa vedere bene i "colori di Marte" (che, dall'alto, sembrano diversi da quanto ci mostrano le Sonde che stazionano sulla superficie e 3) perch ci aiuta a cogliere, usando i nostri occhi, la sensazione che proveremmo se ci trovassimo fisicamente su una nave spaziale, in orbita intorno a Marte.
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Dunes-Brashear_Crater-PIA03656-01.jpgDark Dunes on Brashear Crater's Floor (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)154 visitenessun commentoMareKromium
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South_Polar_Features-Layers-PCF-LXTT.jpgSouth Polar Layers (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)153 visiteCaption NASA originale:"This MGS-MOC image shows remnants of Layered Materials near the West Rim of a Southern Unnamed Crater. The composition of these layered rocks is unknown are they the remains of sedimentary rocks or accumulations of dust and ice? We'll probably not know until someone visits this area, perhaps centuries from now".
Location near: 77,4 South; 341,5 West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer MareKromium
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Acidalia_Planitia-Unusual_Landforms-M0300102-PCF-LXTT-01.jpgUnusual Landforms in Acidalia Planitia (EDM n.1 - Enhanced Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)153 visitenessun commentoMareKromium
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Dunes-Dark_Dunes-Chasma_Boreale-PIA07350-01.jpgDark Dunes in Chasma Boreale (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)153 visiteCaption NASA originale:" This MGS-MOC image shows Dark Sand Dunes overlying an eroded, layered substrate in Chasma Boreale, amid the materials of the Martian North Polar Cap".
Location near: 84,5 North Lat. and 358,3 West Long.
Image width: ~3 Km (~1,9 mi)
Season: Northern SummerMareKromium
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Craters-Lyot_Crater-PCF-LXTT.jpgFretted Terrain and Lyot Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 151 visiteCaption NASA:"Martian "fretted (--->corrugato/increspato) terrain" occurs in Regions of "Buttes" (--->colline "a ceppo") and "Mesas" (--->altopiani) that stand at the erosional margin where Northern low-lying Plains meet the higher-standing Cratered Uplands. Found mostly in the Mid-Northern Latitudes, some of the best examples of "Fretted Terrain" occur in the Deuteronilus Mensae Region. Here, the interaction of the process that creates the Mesas and Buttes, the processes that modify these surfaces after they form, and the relationship of both of these processes with the near-instantaneous event that formed the large Crater Lyot, provide us places to look to decipher this small but important piece of Martian Geological History.MareKromium
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