| Piú votate - A Tribute To Mars Global Surveyor |
Craters-Unnamed_Defrosting_Crater-PIA03921-00.jpgUnnamed Defrosting Crater (Original NASA/MGS/MSSS b/w Frame)81 visiteCaption NASA originale:"This MGS-MOC image shows a Surface in the South Polar Region, covered by CO2 Frost. In this springtime scene, the Frost has begun to sublime so that Sandy Surfaces exhibit an abundance of Dark Spots. The circular depression is probably the remains of an Impact Crater. In summer, the Spotted Surfaces in this image would be darker than their surroundings, because they are patches of Windblown Sand".
Location near: 67,6 South Lat. and 254,3 West Long.
Image width: ~3 Km (~1,9) mi
Illumination from: upper left
Season: Southern Spring
(6 voti)
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Craters-Exhumed_Crater_in_Vastitas_Borealis-PIA03926-00.jpgA very unusually-looking Exhumed Crater (Original NASA/MGS/MSSS b/w Frame)78 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, pi 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 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 pi 'sfrontate', alle volte, possono rivelarsi esatte.
(6 voti)
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Craters-Benedictus_XVI-PIA07838.jpgImpact Crater with frost deposits (Benedictus XVI Crater - Original NASA/JPL/MSSS b/w Frame)72 visiteLocation near: 37,5 South Lat. and 222,1 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Winter
Lunar Explorer Italia, in passato, ha spesso 'battezzato' crateri e rilievi Marziani i quali - ufficialmente - non hanno nome, usando un pizzico di fantasia e cercando di rimanere rispettosa della tradizione Astronomica e Scientifica in materia di nomenclatura. Oggi, 19 Aprile 2005, abbiamo pubblicato la foto di questo "frosty crater", anch'esso senza nome.
Ebbene, anche se la Scienza e la Fede sono Entit profondamente diverse (e sovente in disaccordo, come la Storia ci insegna e racconta) e sebbene Lunar Explorer Italia sia un'Associazione laica in tutto e per tutto, riteniamo giusto rendere omaggio in qualche modo al Nuovo Pontefice della Santa Romana Ecclesia e quindi battezziamo questo imponente rilievo Marziano con il nome di "Benedetto Decimo-Sesto".
(6 voti)
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Craters-Unnamed_Crater_with_Windstreak-PIA07508-00.jpgUnnamed Crater with Windstreak (Original NASA/MGS/MSSS b/w Frame)90 visiteCaption NASA originale:"This MGS-MOC image shows a 1,2 Km North Mid-Latitude Unnamed Crater with a bright Windstreak".
Location near: 30,8 North Lat. and 131,8 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Summer
(6 voti)
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Channels-Unnamed_Channel_near_Ascraeus_Mons-2004_05.jpgA big channel on Ascraeus Mons86 visiteCaption NASA originale:"This MGS-MOC image shows a portion of a deep Channel formed on the Northern Flank of the large Volcano, Ascraeus Mons. Layers of Volcanic Rock are exposed in the Channel Walls, and the dark dots on the Valley Floor are Boulders derived from erosion of these materials.
The picture occurs near 14,5 North Lat. and 102,8 West Long. and is illuminated from the lower left. The picture covers an area about 3 Km (1,9 mi) across".
(6 voti)
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North_Polar_Features-The_Erg-PIA07375.jpgDark Dunes and Frost in the North Polar Erg (Original NASA/JPL/MSSS b/w Frame)81 visiteCaption NASA originale:"This MGS-MOC image shows sand dunes in the North Polar Region of Mars, as they appeared during Northern Summer in December 2004".
Location near: 78.1 North Lat. and 227,2 West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Summer
(6 voti)
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Aeolian_Features-Dust_Devils-2005_03.jpgLight-toned DD Streaks in Schiaparelli Crater (Original NASA/MGS/MSSS b/w Frame)75 visiteCaption NASA originale:"In honor of Giovanni V. Schiaparelli's 170th birthday (04-03-1835/04-03-2005), we present this MGS-MOC image showing light-toned dust devil streaks on the southern floor of Schiaparelli Crater".
Location near: 5,3 South Lat. and 343,3 West Long.
Image width: ~3 km (~1.9 mi)
Illumination from: upper left
Season: Southern Autumn
(6 voti)
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Craters-Tikhonravov_Crater-PIA07196.jpgThe "Eyes" and "Eyebrows" of Tikhonravov Crater (Original NASA/MGS/MSSS b/w Frame)94 visiteCaption NASA originale:"This red wide angle MGS-MOC image shows Tikhonravov Crater in Central Arabia Terra. The Crater is about 386 Km (approx. 240 miles) in diameter and presents two Unnamed Impact Craters at its center that have dark patches of Sand in them, giving the impression of pupils in two eyes. Each of these two Unnamed Craters lies a dark-toned patch of Surface Material, providing the impression of eyebrows.
M. K. Tikhonravov was a leading Russian rocket engineer in the 20th Century. The crater named for him, despite its large size, is still partly buried, on its West Side, beneath the heavily Cratered Terrain of Arabia Terra. The center of Tikhonravov is near 13,5 North Lat. and 324,2 West Long. Sunlight illuminates the scene from the upper left".
(6 voti)
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Dunes-Dark_Dunes-Noachis_Terra-PIA07351-00.jpgDark Dunes in Noachis Terra (Original NASA/JPL/MSSS b/w Frame)109 visiteCaption NASA originale:"This MGS-MOC image shows low albedo Sand Dunes on the floor of a crater in Southern Noachis Terra".
Location near: 52.5 South Lat. and 336.9 West Long.
Image width: ~~3.0 Km (~1.9 mi)
Illumination from: upper left
Season: Southern Autumn
(6 voti)
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Dunes-Dark_Dunes-Chasma_Boreale-PIA07350-00.jpgDark Dunes in Chasma Boreale (Original NASA/JPL/MSSS b/w Frame)117 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: ~3,0 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Summer".
(6 voti)
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Craters-Unnamed_Crater-MGS-PIA06877.jpgUnnamed Crater in Lycus Sulci (Original NASA/MGS/MSSS b/w Frame)107 visiteUn Cratere da impatto Senza Nome giace nell'area immediatamente ad Ovest di Lycus Sulci ed a Nord-Ovest del Monte Olympus. Spettacolare il livello di dettaglio raggiunto nella ripresa delle pareti del Cratere che, nella sua interezza, copre un'area di circa 3 Km quadrati.
(6 voti)
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Mars-02.jpgMars' Solar Longitude 145 (2) - Acidalia Region and Mare Erythraeum78 visitevedi il commento al frame precedente
(6 voti)
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