| Ultimi arrivi - A Tribute To Mars Global Surveyor |
Chasmas-Melas_Chasma-08.jpgSample scarp edge in layered unit in Melas Chasma or... Frozen Waterfalls on Mars? (7 - Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)221 visitenessun commentoMareKromiumSet 29, 2011
|
|
Hills-Zephyria_Region-PIA07859-00.jpgFlow Features and Hills in Zephyria Planum (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 272 visiteCaption NASA originale:"This MGS-MOC image shows a Plain covered by Flow Material that surrounded and banked against 3 older, rounded Hills in the Zephyria Region. Although some investigators have proposed that the Flows covering Plains in this Region are the remains of an ice-covered lake, others have found considerable evidence, including small Volcanoes, to suggest that the Flows are Volcanic. The textures on these Flows resemble that of some of the Lava Flows in the Tharsis Region of Mars".
Location near: 2,7° South Lat. and 195,7° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Southern WinterMareKromiumSet 27, 2011
|
|
Flow_Features-Zephyria_Planum-PIA03066.jpgFlow Features in Zephyria Planum (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 242 visiteOriginal caption:"This MGS-MOC image shows the broken, platy texture of Flow Surfaces in the Zephyria Region of Mars. Some investigators have suggested that these materials represent the remains of an ice-covered lake; others suggest that these are the Surfaces of hardened Lava that - when it was erupting - was very hot and fluid. Although not illustrated here, a key piece of evidence against the ice-covered lake hypothesis is that there are some small Craters formed on these Surfaces, and some of them have Boulders in their Ejecta Blanket. The Boulders indicate that the material is rock-solid".
Location near: 5,3° North Lat. and 208,6° West Long.
Image width: width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern AutumnMareKromiumSet 27, 2011
|
|
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) 247 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 AutumnMareKromiumSet 27, 2011
|
|
Utopia_Planitia-PIA07839.jpgPolygons in Utopia Planitia (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)232 visiteCaption NASA originale:"This MGS-MOC image shows a typical view of Polygon-cracked and Pitted Surfaces unique to Western Utopia Planitia. No other place on Mars has this appearance. Some Mars scientists have speculated that ground ice may be responsible for these landforms".
Location near: 42,3° North Lat. and 275,6° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern SummerMareKromiumSet 27, 2011
|
|
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)197 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...MareKromiumSet 23, 2011
|
|
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) 177 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".MareKromiumSet 23, 2011
|
|
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) 136 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.MareKromiumSet 21, 2011
|
|
Deuteronilus_Mensae-PCF-LXTT-04.jpgFeatures of Deuteronilus Mensae (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 152 visiteCaption NASA:"Subtle and not-so-subtle color variations seen in this composite of MOC images M23-01279 and M23-01280 (acquired on January 19, 2001) trace both the movement of Dark Sand of possible Volcanic origin and fresh, Dark Outcrops of unweathered Bedrock".MareKromiumSet 19, 2011
|
|
Deuteronilus_Mensae-PCF-LXTT-05.jpgFeatures of Deuteronilus Mensae (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 157 visitenessun commentoMareKromiumSet 19, 2011
|
|
Craters-Kaiser_Crater-PCF-LXTT-01.jpgKaiser Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 159 visiteOriginal caption:"As the MGS Primary Mission drew to an end, the Southern Hemisphere of Mars was in the depths of Winter. At high latitudes, it is dark most - if not all - of the day. Even at middle latitudes, the Sun shines only thinly through a veil of Water and Carbon Dioxide Ice Clouds and the ground is so cold that Carbon Dioxide Frosts have formed. Kaiser Crater (located at approx. 47° South Latitude and 340° West Longitude) is one such place. At a latitude comparable to Seattle, Washington, Duluth, Minnesota, or Helena, Montana, Kaiser Crater is studied primarily because of the sand Dunefield found within the confines of its Walls (lower center of the MOC image). The normally dark-gray or blue-black sand can be seen in this image to be shaded with light-toned frost. Other parts of the Crater are also frosted (...)".
MareKromiumSet 19, 2011
|
|
North_Polar_Regions-The_Erg-M2300963-PCF-LXTT.jpgFeatures of the North Polar Erg (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 192 visitenessun commentoMareKromiumSet 18, 2011
|
|
| 512 immagini su 43 pagina(e) |
 |
|
|
|
6 | |
|
|
|
|
|
