A Tribute To Mars Global Surveyor
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Craters-Unnamed_Crater-Terra_Cimmeria.JPGUnnamed Crater with Gullies in Terra Cimmeria (Original NASA/MGS/MSSS b/w Frame)65 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
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Craters-Unnamed_Crater.gifThawing (GIF-Movie; credits for the additional process.: Mars Unearthed)106 visitenessun commentoMareKromium
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Craters-Unnamed_Crater.jpgOn the edge... (Original NASA/MGS/MSSS b/w Frame)77 visiteCaption NASA originale:"This MGS-MOC image shows gullies on the Wall of a Martian South Mid-Latitude Unnamed Impact Crater. The Channels in each Gully head beneath an eroding overhang of layered rock, providing support for the hypothesis that some (if not all) Martian Gullies result from release of groundwater to the Surface".
Location near: 33,0 South Lat. and 213,4 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Autumn
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Craters-Unnamed_Crater_Field_in_Ares_Vallis-MGS.JPGSecondary Craters' Field in Ares Vallis (Original NASA/MGS/MSSS b/w Frame)66 visiteOriginal caption:"This MGS-MOC image shows a Field of Secondary Craters located on the Plains located North of Ares Vallis, roughly 30 or 35 Km (such as about 1922 miles) North-East of the Mars Pathfinder LS. These Craters did not form directly by individual meteor impacts: they resulted from the impact of material ejected from a much larger meteor impact that might have occurred somewhere to the South of the Region".
Nota: per i professionisti di Scienze Planetarie, suggeriamo di portare il frame sino al full-size e quindi esaminare, campionando, almeno 10/12 crateri secondari agendo sull'intera area ripresa. Noi lo abbiamo fatto e le forme che abbiamo individuate NON supportano - a nostro parere - la caption NASA. In particolare: se questa zona effettivamente ricoperta da crateri secondari, allora dovremmo ipotizzare, dopo aver valutato le diverse angolazioni dei rilievi, che questi ejecta sono arrivati da almeno 2 (se non 3) impatti diversi e sensibilmente distanziati nel tempo.
L.N.: 19.9 N and 33,3 W
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Craters-Unnamed_Crater_in_Amazonis_Planitia-M1101105.jpgUnnamed Crater in Amazonis Planitia (Original NASA/MGS/MSSS b/w Frame)79 visitenessun commento
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Craters-Unnamed_Crater_in_Amenthes_Region-m1103890a.jpgUnnamed Crater in Amenthes Region (Original NASA/MGS/MSSS b/w Frame)67 visitenessun commento
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Craters-Unnamed_Crater_in_Argyre_Planitia-M1000443Det.jpgUnnamed (and small) Crater in Argyre Planitia (Original NASA/MGS/MSSS b/w Frame)102 visitenessun commento
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Craters-Unnamed_Crater_in_Chrise_Planitia-01.jpgUnnamed Crater in Chrise Planitia (Original NASA/MGS/MSSS b/w Frame)94 visiteCaption originale:"This MGS-MOC image shows an impact crater in western Chryse Planitia that is approximately 850 mt (~2790 ft) in diameter, surrounded by a flat plain riddled by hundreds of smaller impact craters".
Location near: 27,6 N; 47,3 W
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Winter
Nota: la natura da impatto del cratere ripreso dalla Sonda MGS non pu essere, a nostro parere, n dedotta, n confutata dalle immagini di cui disponiamo. Ci che possiamo dire : qualunque sia l'origine di questo cratere senza nome, come spiegare i curiosi rilievi che sono chiaramente visibili sul suo bordo, ad ore 2, 3 e 6? Si tratta di "gullies"? Diremmo proprio di no. Cedimenti o frane? Difficile dirlo, ma siffatti rilievi, allorch visti dall'alto, si configurano - di regola - in maniera diversa.
E che dire, in particolare, delle due formazioni oblunghe visibili ad ore 6 (e simili a due craterini ovali...)? Esse sembrano essere il risultato di attivit geologicamente "recenti", a nostro avviso, ma la domanda "quali attivit"? Forse nuovi impatti? Certamente no. E allora? E allora noi rilanciamo l'invito, a Studiosi e Ricercatori, affinch si inizi una radicale riconsiderazione sulla genesi dei crateri: la teoria dell'impatto funziona SOLO sino ad un certo punto. Poi notte fonda...
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Craters-Unnamed_Crater_in_Chrise_Planitia-MGS.JPGCrater with bright Windstreak in Chrise Planitia (Original NASA/MGS/MSSS b/w Frame)63 visiteCaption NASA originale:"This MGS-MOC image shows a (bright) wind streak created in the lee such as the "downwind" side (ossa il "lato sottovento") of a crater in far eastern Chryse Planitia.
The winds responsible for the formation of the streak blew from the North-East to the South-West".
Location near: 21,5 North; 27,4 West
Image width: ~3 km (~1,9 mi)
Illumination from: lower left
Season: Northern Winter
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Craters-Unnamed_Crater_in_Chrise_Planitia-PIA07304.jpgUnnamed Crater in Chrise Planitia (Original NASA/MGS/MSSS b/w Frame)149 visiteCaption NASA originale:"This MGS-MOC image shows an impact crater in Chryse Planitia, not too far from the Viking 1 Lander site, that seems to resemble a bug-eyed head. The 2 odd depressions at the north end of the crater (the "eyes") may have formed by wind or water erosion. This Region has been modified by both processes, with water action occurring in the distant past via floods that poured across western Chryse Planitia from Maja Valles, and wind action common occurrence in more recent history. This crater is located near 22.5N, 47.9W". Che dire? Forse gli Alieni (diremmo che in questo caso potrebbe trattarsi dei "Grigi"...) non solo posseggono "tecnologia e senso artistico" ma anche un cospicuo "senso dell'umorismo": solo cos, infatti, potremmo spiegare un simile "autoritratto"!
Scherzi a parte, in questo MGS frame ripresa un'opera della Natura davvero incredibile e che, sicuramente, qualcuno interpreter alla stregua della "Sfinge di Cydonia".
Naturale o Artificiale? That is the question...
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Craters-Unnamed_Crater_in_Hellas_Planitia-1-MGS.jpgUnnamed Crater in Hellas Planitia (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)223 visiteCaption NASA originale:"This MGS-MOC image shows a large crater that formed by meteor impact into the layered material in which the buried crater is encased. The layered rock, in this case, has a light tone similar to the sedimentary rocks being explored by the MER Opportunity, thousands of kilometers away in Sinus Meridiani".
Location near: 24,9 South; 299,3 West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer MareKromium
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Craters-Unnamed_Crater_in_Noachis_Terra-PIA07202_modest.jpgUnnamed Crater in Noachis Terra (Original NASA/MGS/MSSS b/w Frame)91 visiteCaption NASA originale: "This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows an impact crater, a little over 2 Km (> 1,2 mi) in diameter, located in Noachis Terra near 50.4S, 14.3W. 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 (1.9 mi) across, and is illuminated by sunlight from the upper left".
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