| Piú votate - A Tribute To Mars Global Surveyor |
Seeps-MedusaeFossae.gifSeepage in Medusae Fossae (GIF-Movie; credits for the additional proecss.: Mars Unearthed)69 visitenessun commentoMareKromium
(5 voti)
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South_Polar_Features-Swiss_Cheese-PCF-LXTT.jpgSouth Polar Features: Swiss-Cheese Terrain (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)108 visitenessun commentoMareKromium
(5 voti)
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Inca-City-M1501795.jpgA true "South Polar Oddity": Inca City (4 - False Colors)70 visitenessun commento
(5 voti)
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Landslides-Tithonium_Chasma-MGS-01.jpgLandslide in Tithonium Chasma (2 - Original NASA/MGS/MSSS b/w Frame)68 visitenessun commento
(5 voti)
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Channels-Unnamed_Channel_with_White_Ripples-MGS-01.jpgWhite Ripples and Landslide (2 - Original NASA/MGS/MSSS b/w Frame)70 visiteAlla NASA non hanno dubbi: le "creste" di color chiaro che coprono il fondo della quasi totalit dei letti degli antichi fiumi e torrenti Marziani, non sono altro che dune di sabbia "indurita" e levigata dal vento il quale, attraverso refoli e correnti ascendenti e discendenti - ed a prescindere dalla direzione principale dalla quale soffia - modella con maestria il fondo dei letti asciutti di questi canali.
Che dire? La risoluzione di questa immagine - come di tante altre che potrebbero essere di aiuto ai Ricercatori - pessima e quindi...
Dobbiamo aspettare ancora ma, nel frattempo, guardate bene questo dettaglio del frame: il punto di incrocio fra i due maggiori "troughs" (in basso a Dx) non Vi sembra che abbia qualche "lacuna prospettica"? Come si incrociano, di fatto ed in relazione alla piana alla quale accedono, i due letti asciutti? C' qualcosa che non va?!?...
(5 voti)
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Channels-Unnamed_Channel_with_White_Ripples-MGS-00.jpgWhite Ripples and Landslide (1 - Original NASA/MGS/MSSS b/w Frame)67 visiteCaption NASA originale:"This MGS-MOC image shows light-toned Ripples covering the Floors of Troughs in the Adamas Labyrinthus Region of Northern Elysium Planitia. The Ripple Crests generally run perpendicular to the trend of each Trough, indicating that the Dominant Winds involved in shaping these Ripples blow up and down, through the Troughs, independently from the direction of the Winds that blow across the Plains outside the Troughs themselves".
Location near: 32,7 North Lat. and 251,1 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
(5 voti)
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North_Polar_Features-Unconformity-02.jpgNorth Polar "Minor Unconformity" (Original NASA/MGS/MSSS b/w Frame)68 visiteCaption NASA originale:"This MGS-MOC image shows Layers exposed in a Trough in the Martian North Polar Region. At the time the picture was acquired, the entire scene was covered by seasonal Carbon Dioxide Frost. By late Spring and into Summer, these Layers would appear darker, once the CO2 Frost sublimes away".
Location near: 84,9 North Lat. and 263,3 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
(5 voti)
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Northern_Regions-Mesas-MGS.jpgMesas in Vastitas Borealis (Original NASA/MGS/MSSS b/w frame)64 visiteCaption NASA originale:"This MGS-MOC image shows two mesas on the Northern Plains of Mars. "Mesa" is the Spanish word for "table" and that is a very good description of the two elliptical features captured in this MOC image. In both cases, the Mesa tops and the material beneath them, down to the level of the surrounding, rugged Plain, are remnants of a once more extensive layer (or layers) of material that has been largely eroded away. The circular feature near the center of the larger Mesa is the site of a filled and buried Impact Crater".
Location near: 53,5 North Lat. and 153,5 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
(5 voti)
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North_Polar_Features-North_Polar_Scarp-MGS-00.jpgNorth Polar Panorama (Original NASA/MGS/MSSS b/w Frame)67 visiteCaption NASA originale:"This MGS-MOC image shows a steep slope in the North Polar Region of Mars. The stripes indicate an exposure of layered material; the variations in brightness among the stripes are the result of varying amounts and textures on seasonal Carbon Dioxide (CO2) frost. At the time the image was acquired - such as in June 2006 -, the Carbon Dioxide frost was beginning to sublime way, leaving a variety of different patterns in frost distribution".
Location near: 85,2 North Lat. and 122,7 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
(5 voti)
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Craters-Unnamed_Crater.jpgOn the edge... (Original NASA/MGS/MSSS b/w Frame)80 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
(5 voti)
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Volcanoes-Unnamed_Volcano_in_Syria_Planum-MGS.jpgBuried Volcano in Syria Planum (Original NASA/MGS/MSSS b/w Frame)68 visiteCaption NASA originale:"This MGS-MOC image shows a small Volcano in the Syria Planum Region of Mars. Today, the Lava Flows that compose this small Volcano are nearly hidden by a mantle of rough-textured, perhaps somewhat cemented, Dust. The light-toned Streaks that cross the scene were formed by passing Dust Devils, a common occurrence in Syria".
Location near: 13,0 South Lat. and 102,6 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Autumn
(5 voti)
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North_Polar_Features-Dunes-Kaiser_Crater_Dunes-MGS.jpgDunes of the North and Dunes of the South (Original NASA/MGS/MSSS b/w Frames)63 visiteUn raffronto immediato e diretto tra "dune": a Sx le dune in corso di disgelo nelle Regioni Nord Polari di Marte; a Dx, le dune che si possono vedere sul fondo del Cratere Kaiser (Noachis Terra), a media Latitudine Sud.
(5 voti)
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