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T-TRA_000853_1450_RED_AtlantisChaos_01.jpgAtlantis Chaos56 visiteThis HiRISE image covers a small area within a degraded crater adjacent to Atlantis Chaos in the Electris region of Mars. The crater and much of the surrounding region were once extensively mantled by a layer of material(s) of unknown origin and only small remnant outcrops of this material remain seen as flat topped mesas in the image sub-frame shown here. Intervening areas expose ancient uplands materials locally punctuated by narrow ridges that may represent more resistant material within the mantling deposit that were left in relief as the sediments were eroded away. Although the mesas do not appear to be comprised of finely layered materials, hints of some layering in a few locations can be seen. Large blocks of material are being shed from the mesas, but do not appear to accumulate on the mesa slopes as large talus aprons. Some wind blown dunes and ripples can be observed, but are not as widespread as in many other locations imaged with HiRISE. Collectively, these characteristics suggest that the material(s) forming the mantling deposit possess some limited strength, but are easily broken down and removed by wind over time. One possible Earth analog for these deposits may be the wind blown accumulations of very fine sediments, or silt known as loess.
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T-TRA_000849_1675_RED.jpgCoprates Labes56 visiteCoprates Labes is a Martian canyon, part of the huge Valles Marineris system. Valles Marineris most likely formed through tectonic processes, with extensional stresses leading to collapse of the terrain that now lies at the base of the canyons. Filling most of this image, we see a raised block on the canyon bottom, which is quite possibly a horst—a block bounded by faults that separate it from sunken blocks on each side. The raised block is heavily eroded, possibly by wind; this erosion has exposed its internal layering, especially at the southeast margin of the block. Here we see asymmetric erosion features with shallow slopes trailing off to the northwest, suggesting that southeasterly winds dominate the flow through this region. The arrangement of dunes and ripples in the lower right portion of the image confirms this prevailing wind direction. Finally, dark-toned material appears to have flowed from northeast to southwest along the block, possibly moving in a very fluid debris flow.
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NGC-6188-0.jpgNGC 6188 - Emission Nebula56 visite"...Nihil melius Aeterna Lex fecit, quam quod unum introitum nobis ad Vitam dedit, exitus multos..."
(Seneca)
"...Nulla di meglio fece l'Eterna Legge, che darci una sola via per venire al Mondo, e tante per andarcene..."
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NGC-7331-0.jpgNGC 7331 - Spiral Galaxy56 visite"...insieme uniti tutti,
Entro il Patrio terren dolce è dormire:
Pace hanno i cuori, i pianti son rasciutti,
Sciolgonsi al vento gli amor nostri e l'ire..."
E. Severino Ferrari - "Versi"
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Eta Carinae~2.jpgEta Carinae56 visite"...Graeca mercari fide..."
(Plauto)
"...Mercanteggiare con fede greca..." (ossìa "senza fidarsi di parole e promesse")
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Epsilon Eridani.jpgEpsilon Eridani56 visite"...Qualis dominus, talis et servus..."
(Petronio)
"...Come (è) il padrone, così (è) il servo..."
(detto riferito originariamente ai servitori di case private e poi esteso fino ad intendere i governanti ed i governati)
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NGC-4435_and_4438.jpgNGC 4435 and 4438 - Interacting Galaxies56 visite"...Canis timidus vehementius latrat quam mordet..."
(Q. Curzio)
"...Il cane timido (pavido) abbaia più forte di quanto morda..."
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OPP-SOL967-1P214025987ESF76POP2594L7M1.jpgThe rim of Victoria (in a bad frame) - Sol 96756 visitenessun commento
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OPP-SOL967-1P214031259ESF76POP2594L7M1.jpgThe rim of Victoria (after "fixing" the frame) - Sol 96756 visitenessun commento
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NGC-4038_and_NGC-4039-0.jpgNGC 4038 and 4039 - The "Antennae Galaxies"56 visite"...Ars longa, Vita brevis (est)..."
(Seneca)
"...La via dell'Arte (intesa come Scienza e Conoscenza) è eterna; la Vita (invece) è breve..."
Nota: tutta la Vita di un Uomo che si dedichi alle Arti ed alla Scienza non basta perchè egli possa svolgere la sua opera ed il suo pensiero per intero. Come Faust cade sul libro non finito, altri lo riprenderà per continuarlo e quindi seguirà la stessa fine e così via...ad infinitum.
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Corvus.jpgCorvus56 visite"...Conscia Mens, recti famae mendacia ridet..."
(Ovidio)
"...La Coscienza dell'Uomo onesto ride delle menzogne (proprie) della fama..."
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NGC-4038.jpgNGC 4038 - The "Antennae Galaxies"56 visite"...la Gloria è solo un effimero dono degli Dei..."
(dal film "Patton")
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