| Piú votate - A Tribute To Mars Global Surveyor |
Tithonium_Chasma-PIA03968-PCF-LXTT-01.jpgFeatures of Tithonium Chasma (Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)147 visiteCaption NASA originale:"This MGS-MOC image shows dark rippled surfaces and a patch of light-toned, perhaps sedimentary rock exposed on the floor of western Tithonium Chasma, part of the vast Valles Marineris Canyon System".
Location near: 5,0° South Lat. and 90,3° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season Southern SpringMareKromium
(1 voti)
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South_Polar_Features-Defrosting_Dunes-A-M0702775-PCF-LXTT.jpgSouth Polar Features: Defrosting Dunes (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)213 visitenessun commentoMareKromium
(1 voti)
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South_Polar_Features-Isolated_Knob-PIA03977-PCF-LXTT.jpgSouth Polar Features: Layered Knob (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)194 visiteCaption NASA originale:"This MGS-MOC image shows a small, relatively light-toned Knob of Layered Material and the erosional expression of the underlying layers, in the South Polar Region of Mars. When the image was acquired in April 2005, the surface was still covered with seasonal carbon dioxide frost. Dark spots and streaks mark locations where the frost had begun to change and sublime away".
Location near: 84,2° South and 138,3° West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season Southern Spring MareKromium
(1 voti)
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South_Polar_Features-Layers-PCF-LXTT.jpgSouth Polar Layers (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)144 visiteCaption NASA originale:"This MGS-MOC image shows remnants of Layered Materials near the West Rim of a Southern Unnamed Crater. The composition of these layered rocks is unknown — are they the remains of sedimentary rocks or accumulations of dust and ice? We'll probably not know until someone visits this area, perhaps centuries from now".
Location near: 77,4° South; 341,5° West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer MareKromium
(1 voti)
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Clouds-South_Polar_Regions-Chasma_Australe-2003_10_29_M0904025-PCF-LXTT-1.jpgFogs and Clouds over Chasma Australe (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)249 visitenessun commentoMareKromium
(1 voti)
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Claritas_Fossae-Smoke-MU.gifDark Smoke moving over Claritas Fossae (GIF-Movie; credits: Mars Unearthed)57 visitenessun commentoMareKromium
(1 voti)
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South_Polar_Features-Swiss_Cheese.gifGlobal Warming on Mars (GIF-Movie; credits: Mars Unearthed)53 visitenessun commentoMareKromium
(1 voti)
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Inca-City-M0306902-00.jpgA true "South Polar Oddity": Inca City (2 - False Colors)57 visite"Inca City" is the informal name given by Mariner 9 Scientists in 1972 to a set of intersecting, rectilinear ridges that are located among the layered materials of the South Polar Region of Mars. Their origin has never been understood; most investigators thought they might be sand dunes, either modern dunes or, more likely, dunes that were buried, hardened, then exhumed. Others considered them to be dikes formed by injection of molten rock (magma) or soft sediment into subsurface cracks that subsequently hardened and then were exposed at the surface by wind erosion.
(1 voti)
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Terra_Cimmeria-Gullies-PIA02919-2.jpgGullies in Terra Cimmeria (Original RAW Frame)65 visiteDue splendide immagini che immortalano l'incredibile conformazione di questa Regione Marziana attraversata da canyons e crepacci.
Nell'immagine precedente, fate attenzione a non confondere - come già fanno in molti, assecondando le "visioni" (questa volta detto in senso non positivo...) del Prof. Hoagland - i letti semi-fangosi ed in parte sabbiosi di antichi fiumi e torrenti, ora ricoperti di Side-Winders (ossìa delle dune dalle forme sinuose le quali ricordano le tracce lasciate sulle sabbie da un particolare tipo di serpente) con gli ormai - tristemente - famosi "translucent tunnels" (ossìa, secondo il Prof. Hoagland ed i suoi adepti) delle costruzioni in simil-plexiglas o in cristallo, del tutto analoghe ai nostri tunnels, ma con la variante che, su Marte, esse non servono ad attraversare le montagne, ma scorrono sulla superficie del Pianeta).
Cerchiature Bianche: non serve essere Geologi per vederlo: questi cracks sulla fiancata del rilievo maggiore inquadrato sono estremamente recenti.
(1 voti)
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Volcanoes-Olympus_Mons_and_Tharsis_Region.jpgTharsis Region (Natural Colors; credits: NASA/MGS/MSSS)128 visite"Mars Global Surveyor's camera, MOC, provided this hemispheric view of the northern Tharsis region on June 1, 1998. This picture shows the giant volcano, Olympus Mons, and one of the Tharsis Montes volcanoes, Ascraeus Mons. Another volcano, Alba Patera, is lurking under the haze and clouds at the top of the image. Olympus Mons is about 550 Km wide. The terminator - such as the line that divides night and day - was located west of Olympus Mons (left part of the image). It is Winter in the northern hemisphere of Mars and the high latitudes (i.e.: north of Olympus Mons in this picture) exhibit clouds and haze. These clouds most likely contain water ice".
Non possiamo non notare l'enfasi che viene spesso posta, in sede di commento originale alle immagini, sul fatto che le nuvole Marziane "MOLTO PROBABILMENTE" (ossìa "QUASI CERTAMENTE") contengono ACQUA. E allora noi rivolgiamo alla NASA - ancora - la stessa domanda: ma siamo certi che su Marte non piove da qualche milione di anni?
Risposta? Silenzio totale.
(12 voti)
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Martian_Mountains-MGS-00.jpgCharitum Montes (Natural Colors; credits: NASA/MGS/MSSS)196 visiteWhat causes the unusual white color on some Martian Mountains? The answer can be guessed by noticing that the bright areas disappear as springtime takes hold in the South of Mars: dry ice. Dry CO2 ice sublimates directly to gas from its frozen state. The frosty mountains, named "Charitum Montes", have been covered with CO2 ice over the Martian Winter. The serene scene pictured above is not a photograph, but rather a computationally constructed digital illusion resulting from the fusion of two color images from the Mars Orbital Camera and topographic data from the Mars Orbiter Laser Altimeter. Both instruments operate from the Mars Global Surveyor robot spacecraft currently orbiting Mars.
(12 voti)
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Volcanoes-Unnamed_Volcano-PIA06841.jpgUnnamed Small Martian Volcano (EDM - Original NASA/MGS/MSSS b/w Frame)180 visite"...This Mars Global Surveyor (MGS) image shows a small Unnamed Volcano located South/West of the giant Volcano, Pavonis Mons, near 2,5° South Lat. and 109,4° West Long. Lava Flows can be seen to have emanated from the Summit Region, which today is an irregularly-shaped Collapse Pit, or Caldera. A blanket of Dust mantles this Volcano. Dust covers most Martian Volcanoes, none of which are young or active today. This picture covers an area about 3 Km across..."
(12 voti)
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