Mars Reconnaissance Orbiter (MRO)
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PSP_007035_1670_RED_abrowse.jpgLight-Toned Layers in Noctis Labyrinthus (Natural Colors; credits: Lunar Explorer Italia)54 visitenessun commentoMareKromium
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PSP_007043_2650-BLUE-MarsPolarDunes2_hirise_big-00.jpgSand Dunes Thawing on Mars (False Colors; credits: NASA)62 visiteCaption NASA:"What are these strange shapes on Mars? Defrosting sand dunes.
As spring now dawns on the Northern Hemisphere of Mars, dunes of sand near the pole, as pictured above, are beginning to thaw.
The Carbon Dioxide and water ice actually sublime in the thin atmosphere directly to gas. Thinner regions of ice typically defrost first revealing sand whose darkness soaks in sunlight and accelerates the thaw. The process might even involve sandy jets exploding through the thinning ice. By Summer, spots will expand to encompass the entire dunes. The Martian North Pole is ringed by many similar fields of barchan sand dunes, whose strange, smooth arcs are shaped by persistent Martian Winds".MareKromium
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PSP_007043_2650-BLUE-MarsPolarDunes2_hirise_big-01.jpgSand Dunes Thawing on Mars (Natural Colors; credits: Lunexit)53 visitenessun commentoMareKromium
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PSP_007043_2650_RED_abrowse-PCF-LXTT.jpgDefrosting North Polar Dunes (Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)65 visitenessun commentoMareKromium
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PSP_007055_2015_RED_abrowse-0.jpgVolcanic and Clay Materials near Nili Fossae (ctx frame - MULTISPECTRUM; credits: Lunexit)54 visiteThis image is located West of the Nili Fossae Trough, one of the proposed Landing Sites for the Mars Science Laboratory. Here, we combine information from two other MRO instruments, the Context Camera (CTX) and the Compact Reconnaissance Imaging Spectrometer for Mars (CRISM), to provide insight into the geology of the Region.
Nota Lunexit: sicuramente le informazioni NASA su questo frame sono interessanti e preziose, ma noi Vi invitiamo a prestare un PARTICOLARE ATTENZIONE alla struttura ed alla configurazione superficiale delle dune che caratterizzano tutta la zona ripresa.
Si tratta, in effetti, di dune che, in passato, a causa della loro conformazione ed albedo, hanno ingannato innumerevoli Ricercatori i quali le avevano scambiate per "tubazioni" affioranti.
L'edt n. 3 (elaborato in colori naturali) Vi permetterà di cogliere al meglio non solo la - riteniamo incredibile - conformazione di queste mega-dune, ma anche la loro del tutto peculiare colorazione.MareKromium
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PSP_007055_2015_RED_abrowse-1.jpgVolcanic and Clay Materials near Nili Fossae (edm n. 1)54 visitenessun commentoMareKromium
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PSP_007055_2015_RED_abrowse-2.jpgVolcanic and Clay Materials near Nili Fossae (edm n. 2)55 visitenessun commentoMareKromium
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PSP_007055_2015_RED_abrowse-3.jpgVolcanic and Clay Materials near Nili Fossae (edm n. 2 - Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 69 visitenessun commentoMareKromium
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PSP_007055_2015_RED_abrowse-4.jpgVolcanic and Clay Materials near Nili Fossae (edm n. 3 - natural colors; credits: Lunexit)54 visiteChe ne dite di queste "dune"? "Curiose", vero? MareKromium
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PSP_007078_1080_RED_abrowse.jpgThe Dunes of Richardson Crater (MULTISPECTRUM; credits: Lunexit)54 visitenessun commentoMareKromium
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PSP_007080_2565.jpgBarchan Dune in Vastitas Borealis (Perspective View and Natural Colors; credits: Dr G. Barca)54 visitenessun commentoMareKromium
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PSP_007080_2565_RED_abrowse.jpgSouth Polar Dunes (Natural Colors; credits: Lunar Explorer Italia)55 visitenessun commentoMareKromium
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