| Risultati della ricerca nelle immagini - "Highlands" |
26-Lunar Highlands.jpgLunar Highlands66 visiteThese two images, taken by the advanced Moon Imaging Experiment (AMIE) on board SMART-1, show the difference between lunar highlands and a mare area from close by.
The image on the left, showing highlands, was obtained by AMIE on 22 January 2006, from a distance of about 1112 kilometres from the surface, with a ground resolution of 100 metres per pixel. The imaged area is centred at 26° South and 157° West.
The image on the right, showing a mare, was taken on 10 January 2006, from a distance of about 1990 kilometres and with a ground resolution of 180 metres per pixel. The imaged area is centred at 27.4° North and 0.8° East.
Already when looking at the Moon with the naked eye, it can be seen that there are bright and dark areas on its surface. Centuries ago, the dark areas were called 'maria', presumably assuming that the observer would be seeing water oceans. Today we know that there is no liquid water on our satellite. However, telescopic observations showed that the maria are very flat, and are very different from the so-called highlands. The highlands are heavily cratered and mountainous.
We have learned that the maria are relatively young areas on the Moon which were generated after very large impacts penetrated the lunar crust and excavated basins. During later volcanic episodes, liquid magma came to the surface and filled these basins. When it cooled down and solidified, it formed the large flat areas we can still see today. As this happened in comparatively recent times, the number of impact craters is far less than in the highland areas.
From the two images it is possible to see how highlands present a very irregular topography and many craters, while the mare area is comparatively flat and shows a much smaller number of craters.
The images are raw data and no flat field or other corrections have been applied.
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Coracis_Fossae-PIA14524-PCF-LXTT.jpgFeatures of Coracis Fossae (Absolute Natural Colors; credits for the additional process. and color: Dr Paolo C. Fienga - Lunexit Team)138 visiteOrbit Number: 42634
Latitude: 39,051° South
Longitude: 278,428 East
Instrument: VIS
Captured: July, 25th, 2011
Mars Local Time (M.L.T.): 18:00 (Late Afternoon)
MareKromium
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LRO-0007a-369443main_lroc_apollo16_lrg.jpgDescartes Highlands: the Apollo 16 Landing Site (ctx frame)56 visitenessun commentoMareKromium
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LRO-0007b-369443main_lroc_apollo16_lrg.jpgDescartes Highlands: the Apollo 16 Landing Site (edm)70 visitenessun commentoMareKromium
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LRO-0008a-369444main_lroc_apollo17_lrg.jpgTaurus-Littrow Highlands: the Apollo 17 Landing Site (ctx frame)63 visitenessun commentoMareKromium
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LRO-0008b-369444main_lroc_apollo17_lrg.jpgTaurus-Littrow Highlands: the Apollo 17 Landing Site (edm)53 visitenessun commentoMareKromium
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Landforms-PIA08505-01.jpgFeatures of the Southern Highlands (1 - Original NASA/JPL/ASU b/w Frame)53 visiteImage information: VIS instrument;
Latitude: 69,4° South;
Longitude: 8,6° East;
Resolution: 17 meter/pixel.
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Landforms-PIA08505-02.jpgFeatures of the Southern Highlands (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 187 visitenessun commentoMareKromium
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Landforms-PIA08505-03.jpgFeatures of the Southern Highlands (2 - Original NASA/JPL/ASU b/w Frame)53 visitenessun commento
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Landforms-PIA08505-04.jpgFeatures of the Southern Highlands (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 185 visitenessun commentoMareKromium
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Mars&Iran-0.jpgMars and Iran: where "nothing" becomes "something"! (1)788 visiteCome prevedibile – e sebbene a malincuore – inauguriamo la nostra Galleria di “Scemenze Spaziali” con una serie di frames proposti sul Sito del Prof. Richard Hoagland, “The Enterprise Mission”.
Si tratta di sei frames (MGS, Odyssey e MRO), estratti da un articolo dello stesso Prof. Richard Hoagland (“Mars Reconnaissance Orbiter...and the lost Cities of Barsoom”) i quali mettono a confronto (dobbiamo dire in maniera bella e graficamente accattivante, ma – ahinoi! – anche intrinsecamente scorretta, ingannevole e fuorviante) alcuni paesaggi Marziani con delle aree Archelogiche di indubbio fascino, situate nell’odierno Iran.
Dov’è la “baggianata”, ci chiederete?
Beh, di “baggianate” – a dire il vero – ce ne sono davvero parecchie in questi “arditi raffronti”, ma noi Vi suggeriamo di soffermarVi su queste semplici ed immediatissime riflessioni.
Come si legge nelle captions dei frames usati dallo stesso Hoagland per la sua speculazione, i frames relativi alle “Rovine Persiane” (riprese da un aereo) sono stati ottenuti da altezze comprese fra i 427 ed i 2000 mt.
Si tratta davvero di poca cosa se pensate che i frames relativi alle presunte “Rovine Marziane” sono stati invece ottenuti da altezze comprese tra i 550 ed i 2489 Km!
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Mars&Iran-2.jpgMars and Iran: where "nothing" becomes "something"! (3)711 visitePensateci: scattare una foto di un paesaggio da una distanza di poche centinaia di metri e quindi scattare un’altra foto (anche del medesimo paesaggio) da svariate centinaia di Km è già un’azione sufficiente per mettere un Terzo Osservatore in estrema difficoltà (o addirittura nell’impossibilità assoluta) di riconoscere la reale e sostanziale identità dei paesaggi ripresi.
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