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as15-86-11620.jpgAS 15-86-11620 - Hadley Rille Panorama (2)56 visitenessun commentoMareKromium
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PSP_006891_1970_RED_abrowse-01.jpgAt the base of the Olympus... (EDM - Saturated Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)56 visiteThe bottom right part of the cutout has a much flatter and smoother surface. These are younger lava flows that have buried the lower part of the volcano. When lava flows form vast smooth sheets, they are called "flood" lavas.
In the bottom of the cutout, the flood lavas have odd, wiggly looking plateaus. These are parts of the lava crust that were lifted up when more liquid lava was injected into the middle of the slowly solidifying lava flow.
This process is called "inflation" and is seen on many lava flows on Earth. These younger lava flows are cut by two different sets of faults. One makes the branching valley in the flood lavas and the other creates the sinuous ridge and valley along the edge of the Olympus Mons lava flows.
Lower resolution images that cover a broader area suggest that the sinuous fault is an old buried structure that has been more recently reactivated.MareKromium
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PSP_006952_1870_RED_abrowse-01.jpgDunefield in West Arabia Terra Unnamed Crater (extra-detail mgnf - RAW Frame; credits: NASA/JPL/Univ. of Arizona)56 visiteBarchan dunes are commonly found on Earth, and are generally crescent-shaped with a steep slip face bordered by horns oriented in the downwind direction (see here).
Barchan dunes form by unidirectional winds and are good indicators of the dominant wind direction. In this case, the strongest winds blew approximately North to South.
These dunes are most likely composed of basaltic sand that has collected on the bottom of the crater. Superimposed on their surface are smaller secondary dunes which are commonly seen on terrestrial dunes of this size.
Many smaller and brighter bed forms — most likely small dunes or granule ripples — also cover the substrate between the larger dark dunes.
The dark dunes overlie the small bright bed forms indicating that the darker dunes formed more recently.MareKromium
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OPP-SOL1457-1.jpgLooking inside Victoria - Sol 1457 (natural colors + MULTISPECTRUM; credits: Dr Gianluigi Barca & Lunexit)56 visitenessun commentoMareKromium
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AS15_AS15-87-11719.jpgAS 15-87-11719 - Hadley Delta (True Colors; credits: Dr Marco Faccin)56 visitenessun commentoMareKromium
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SOL971.jpgMartian Sandglass near Spirit - Sol 971 (Darkened Natural Colors; credits for the additional process. and color.: Dr Marco Faccin - Lunexit Team) 56 visitenessun commentoMareKromium
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013-Mars_Visual_Albedo_.jpgMars Visual Albedo through a RED Filter56 visiteThis image of Mars is from the Mars Orbiter Camera (MOC) on the Mars Global Surveyor (MGS) Spacecraft.
The image means the "Visual Brighness" of Mars, meaning how Mars would appear to the human eye through a red filter.
The mosaic is from a short time in 1999, when there was a significant dust storm in Hellas Basin (brigh spot on right side near bottom).
There is no data from the South Pole, because it was in total darkness at the time - and Mars' North Pole was pointed towards the Sun.MareKromium
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ISD_highres_AS15_AS15-88-12002.jpgAS 15-88-12002 - Aristarchus and Herodotus (Enhanced Version - NASA colors; credits: Dr Paolo C. Fienga)56 visitenessun commentoMareKromium
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PSP_007173_2245_RED_abrowse-01.jpgScallops and Polygons in the Utopia Planitia Region (extra-detail mgnf - MULTISPECTRUM; credits: Lunexit)56 visiteSeveral cracks cut through the side of the scallops suggesting that they must be at least as deep as the scallops. The polygons may have been present previous to the erosion of the mantle.
The landforms we observe here most likely show that ice-rich permafrost is present or has been present geologically recently. At this latitude on Mars, the conditions of pressure and temperature allow water ice within the ground to sublime.
The disappearance of the ice component of the ground probably leads to the formation of the depressions, a process that may still be active today.MareKromium
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The_Rings-PIA09860.jpgRings Aglow (natural colors; credits: NASA)56 visiteCaption NASA:"Saturn's softly glowing Rings shine in scattered Sunlight. The B-Ring presents a remarkable difference in brightness between the near and far arms (bottom and top of the image, respectively). The strong variation in brightness could be due to the presence of wake-like features in the B-Ring.
This view looks toward the unilluminated side of the Rings from about 5° above the Ring-Plane. Images taken using red, green and blue spectral filters were combined to create this natural color view. The images were acquired at a distance of approx. 574.000 Km (about 357.000 miles) from Saturn.
At the center of the image, the Sun-Ring-Spacecraft Angle - or Phase Angle - is 114°, and the image scale is roughly 34 Km (about 21 miles) per pixel in the radial, or outward from Saturn, direction".
Nota Lunexit: ATTENZIONE! La NASA, riteniamo con questo frame, ha finalmente iniziato a fornire qualche dettaglio in più allorchè vengono comunicate al Pubblico delle info le quali, in sè, e laddove non adeguatamente precisate, finivano con il dire poco: si tratta del punto di riferimento del frame considerato per il calcolo dell'Angolo di Fase (che è il suo centro) e la direzione di riferimento del frame in ordine alla Scala pixel/Km. Non male, considerato che avevamo iniziato proprio noi, circa tre anni fa, a dare informazioni contestuali di supporto a svariati frames NASA-CASSINI (non queste info, comunque).MareKromium
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HD-189733.jpgWhere is HD 189733?56 visite"...Dove inizia il Cielo, Padre?..."
"...Figlio mio, esso inizia lì dove finisce la tua capacità di raggiungere..."
P.C. Floegers - "Conversations for Tomorrow"MareKromium
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HD-189733b-3.jpgExtra-Solar Planet HD 189733b56 visite"...At the beginning of your supplications, a word went out, anf I have come to declare it, for you and greatly beloved.
So consider the Word, and understand the Vision..."
- Daniel, 9:23MareKromium
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