| Piú votate - A Tribute To Mars Global Surveyor |
Flow_Features-Zephyria_Planum.jpgFlow Features in Zephyria Planum (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 252 visiteOriginal caption:"This MGS-MOC image shows the solidified remains of Flows — probably Lava, but possibly Mud — in the Zephyria Region of Mars, south of Cerberus Fossae".
Location near: 5,2° North Lat. and 203,6° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern AutumnMareKromium
(2 voti)
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Craters-Lau_Crater-M07_4748_4749-PCF-LXTT-01.jpgBizarre-looking "Dark Spot" near Lau Crater (EDM - Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)200 visiteLa chiazza scura e senza nome che la NASA stessa definisce di "natura sconosciuta" potrebbe essere l'evidenza, secondo alcuni Ricercatori Americani ed Europei, di una minuscola area di Marte con "vegetazione". Si, avete letto bene: vegetazione, di un qualche tipo. In un'altra immagine della stessa zona, la macchia scura appare di colore verdastro e non nero. E' del tutto evidente che i sostenitori dell'idea che si tratti di vegetazione (si, ma che tipo?) ritengono che l'immagine NASA sia manipolata, mentre la NASA sostiene che i colori che vedete sono "almost real" e quindi la macchia scura, comunque, non è (nè potrebbe comunque essere) vegetazione.
Questi sono i dati e le informazioni disponibili: come vedete, c'è materiale su cui riflettere...MareKromium
(2 voti)
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Craters-Lau_Crater-M07_4748_4749-PCF-LXTT-00.jpgFeatures and Proximities of Lau Crater (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 179 visiteCaption NASA:"The Martian Southern Hemisphere was nearly 2 months into its Spring Season when this picture was taken by the Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) on September 25, 1999. The scene covers a vast, Frost-coated Plain located South of the martian Antarctic Circle. The icy Terrain in the image has an almost pastel-like character, owing to the mixture of reddish Dust both on, in, and under the white Frost. The Frost - mostly frozen water at this time of year - is left over from Winter, which ended on August 2, 1999. One Martian Year is about 687 Earth days long, thus each of the Planet's 4 seasons are nearly twice as long as seasons on Earth.
The largest Crater visible in the upper left of the frame is Lau Crater, named for the Danish Astronomer, Hans E. Lau (1879-1918). The Dark Spot near the center of the image has no name, and its origin is unknown. The picture covers an area about 1.020 Km across by approximately 1.240 Km down.
The center is located near 76° South Lat. and 97° West Long.; North is toward the upper right. Sunlight illuminates the scene from the upper left".MareKromium
(2 voti)
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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) 139 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
(2 voti)
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Argyre_Planitia-Dust_Devil-MGS-PCF-LXTT.jpgDust Devil in Argyre Planitia (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)157 visitenessun commentoMareKromium
(2 voti)
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Buttes-Argyre_Planitia-MGS-PCF-LXTT.jpgUnusually-looking Butte in Argyre Planitia (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 182 visitenessun commentoMareKromium
(2 voti)
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Craters-Unnamed_Crater-PIA07202-PCF-LXTT.jpgUnnamed Crater with Pedestal (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)235 visiteThis Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows an Unnamed Impact Crater, a little over 2 Km (> 1,2 mi) in diameter, located in Noachis Terra near 50,4° South and 14,3° West. The Crater's Bouldery Ejecta Blanket has protected underlying material from being eroded away by wind, leaving the Ejecta up on a low Pedestal. This picture covers an area about 3 Km (approx. 1,9 miles) across, and is illuminated by sunlight from the lower left.MareKromium
(2 voti)
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North_Polar_Features-Polygons-PIA07354-1.jpgNorth Polar "Polygons" (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)241 visitenessun commentoMareKromium
(2 voti)
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Craters-Buried_Crater-01.jpgUnder the Sand (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)218 visiteCaption NASA originale:"This MGS-MOC image shows a partially-buried crater in the North Polar Region of Mars.
The circular feature is surrounded and partly overlain by some of the many, many sand dunes in the area. The steepest slopes on each dune — their "slip faces" — face toward the SouthEast, indicating that the dominant winds responsible for sand transport in this Region come from the NorthWest".
Location near: 76,0° North; 82,2° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern SpringMareKromium
(2 voti)
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Craters-Tikhonravov_Crater-PIA03962-01.jpgSedimentary Rocks inside Tikhonravov Crater - Arabia Terra (Saturated Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)131 visiteCaption NASA originale:"This MGS-MOC image shows Layered Sedimentary Rocks exposed by erosion, then mantled by Dust, in Tikhonravov Crater in central Arabia Terra. Dark Slope Streaks occur where some of the Dust has slid down the layered Slopes".
Location near: 13,8° North Lat. and 324,8° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern AutumnMareKromium
(2 voti)
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Craters-Exhumed_CFrater_in_Vastitas_Borealis-PIA03926-01.jpgA very unusually-looking Exhumed Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)141 visiteCaption NASA originale:"This MGS-MOC image shows a circular feature on the Martian Northern Plains. It was once a crater formed by meteoritic impact. It was completely filled and buried by and within layered material. Later, the layered materials have begun to be eroded away, re-exposing the old crater rims in the process".
Location near: 44,9° North Lat. and 264,7° West Long.
Image width: ~3 Km (~1,9) mi
Illumination from: lower left
Season: Northern Autumn
Nota: a giudicare dalle fattezze emergenti dalle sabbie, più che un antico cratere sepolto ed ora in corso di 'riesumazione', diremmo che potrebbe trattarsi di un modesto rilievo vulcanico (un "camino" infossato), caratterizzato da un discreto numero di caldere. Certo, non si è mai sentito parlare di un 'vulcano sepolto' e poi riportato alla luce dal concorso degli agenti geologici ed atmosferici ma, in fondo, anche le ipotesi più 'sfrontate', alle volte, possono rivelarsi esatte. MareKromium
(2 voti)
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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)138 visitenessun commentoMareKromium
(2 voti)
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