| Piú viste - A Tribute To Mars Global Surveyor |
Controversial_Features-The_D_M_Pyramid-02.jpgThe D&M Pyramid (Original NASA/MGS/MSSS b/w Frame)147 visiteCaption NASA originale:"The mosaics shows a Cydonia landform popularly known as the "D&M Pyramid." It is located near 40.7°N, 9.6°W. Although it is not really shaped like a pyramid, the Cydonia landform is 1 of thousands of massifs, buttes, mesas, knobs and blocks that mark the transition from the far northwestern Arabia Terra cratered highlands down to the northeastern Acidalia Planitia lowlands. Each block, whether shaped like a face, a pyramid, or simply a mesa, massif or knob, is a remnant of the bedrock of northeastern Arabia that was left behind as erosion slowly degraded the terrain along this zone between the highlands and the lowlands. A few outcroppings of layers in this ancient bedrock can be seen in the mosaic of the pyramid-like landform shown here; much of the landform is covered with eroded mantling material that was deposited long after this highlands remnant became an isolated feature in Cydonia".
Lunar Explorer, questa volta, concorda pienamente con quanto riportato nella caption NASA.
|
|
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)145 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
|
|
Dunes-Brashear_Crater-PIA03656-01.jpgDark Dunes on Brashear Crater's Floor (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)145 visitenessun commentoMareKromium
|
|
Craters-Unnamed_Buried_Craters-MGS-PIA06855-01.jpgUnnamed Buried Craters in Utopia Planitia (Enhanced Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)145 visiteCaption NASA:"This Mars Global Surveyor (MGS) Mars Orbiter Camera (MOC) image shows a cracked Plain in Western Utopia Planitia. The three circular crack patterns indicate the location of three buried Unnamed Impact Craters. These landforms are located near 41,9° North Lat. and 275,9° West Long. The image covers an area approximately 3 km (about 1,9 mi) across. Sunlight illuminates this scene from the lower left".MareKromium
|
|
Acidalia_Planitia-Unusual_Landforms-M0300102-PCF-LXTT-03.jpgUnusual Landforms in Acidalia Planitia (EDM n.3 - Enhanced Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)144 visitenessun commentoMareKromium
|
|
Acidalia_Planitia-Unusual_Landforms-M0300102-PCF-LXTT-01.jpgUnusual Landforms in Acidalia Planitia (EDM n.1 - Enhanced Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)143 visitenessun commentoMareKromium
|
|
Dunes-Dark_Dunes-Chasma_Boreale-PIA07350-01.jpgDark Dunes in Chasma Boreale (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)143 visiteCaption NASA originale:" This MGS-MOC image shows Dark Sand Dunes overlying an eroded, layered substrate in Chasma Boreale, amid the materials of the Martian North Polar Cap".
Location near: 84,5° North Lat. and 358,3° West Long.
Image width: ~3 Km (~1,9 mi)
Season: Northern SummerMareKromium
|
|
Phobos-Phobos_Monolith-10.jpgThe Phobos' Monoliths in context (an Image-Mosaic in Absolute Natural Colors; credits for the additional process. and color.: Marco Faccin and Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)143 visiteTanto per ricordare agli Amici "Anomaly Hunters" che di Monoliti (o, come suggeriamo noi, di "Parallelepipedal-shaped Ejecta Boulders"), su Phobos, ce ne sono ALMENO due. E comunque, se proprio vogliamo parlare di Anomalìe, potremmo discutere non solo (e non tanto!) della forma dei due rilievi controversi ed indicati da una freccia, quanto della loro (straordinaria ed inspiegabile, oltre che totalmente fuori contesto, a nostro parere) Albedo...MareKromium
|
|
Thaumasia_Region-M1700805-PCF-LXTT.jpgA "Lake of Sand" in Thaumasia Region (Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunar Explorer Italia)141 visitenessun commentoMareKromium
|
|
Craters-Exhumed_CFrater_in_Vastitas_Borealis-PIA03926-01.jpgA very unusually-looking Exhumed Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)140 visiteCaption NASA originale:"This MGS-MOC image shows a circular feature on the Martian Northern Plains. It was once a crater formed by meteoritic impact. It was completely filled and buried by and within layered material. Later, the layered materials have begun to be eroded away, re-exposing the old crater rims in the process".
Location near: 44,9° North Lat. and 264,7° West Long.
Image width: ~3 Km (~1,9) mi
Illumination from: lower left
Season: Northern Autumn
Nota: a giudicare dalle fattezze emergenti dalle sabbie, più che un antico cratere sepolto ed ora in corso di 'riesumazione', diremmo che potrebbe trattarsi di un modesto rilievo vulcanico (un "camino" infossato), caratterizzato da un discreto numero di caldere. Certo, non si è mai sentito parlare di un 'vulcano sepolto' e poi riportato alla luce dal concorso degli agenti geologici ed atmosferici ma, in fondo, anche le ipotesi più 'sfrontate', alle volte, possono rivelarsi esatte. MareKromium
|
|
Dunes-PIA07152-01.jpgDark Dunes and Yardangs inside Herschel Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)140 visitenessun commentoMareKromium
|
|
Craters-Lyot_Crater-PCF-LXTT.jpgFretted Terrain and Lyot Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team) 138 visiteCaption NASA:"Martian "fretted (--->corrugato/increspato) terrain" occurs in Regions of "Buttes" (--->colline "a ceppo") and "Mesas" (--->altopiani) that stand at the erosional margin where Northern low-lying Plains meet the higher-standing Cratered Uplands. Found mostly in the Mid-Northern Latitudes, some of the best examples of "Fretted Terrain" occur in the Deuteronilus Mensae Region. Here, the interaction of the process that creates the Mesas and Buttes, the processes that modify these surfaces after they form, and the relationship of both of these processes with the near-instantaneous event that formed the large Crater Lyot, provide us places to look to decipher this small but important piece of Martian Geological History.MareKromium
|
|
| 512 immagini su 43 pagina(e) |
 |
|
|
|
|
11 | |
|
|
|
|
