| Piú votate - A Tribute To Mars Global Surveyor |
Craters-Wirtz_Crater-Dunes-MGS.jpgThe Dunes of Wirtz Crater (Original NASA/MGS/MSSS b/w Frame)74 visiteCaption NASA originale:"This MGS-MOC image shows dark Sand Dunes, formed by winds blowing from the South-West (upper right), in Wirtz Crater. The Crater is named for Carl Wilhelm Wirtz (1876–1939), a German astronomer".
Location near: 49,0° South Lat. and 25,5° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Autumn
(8 voti)
|
|
Volcanoes-The_FootPrint_Volcano-A-MGS.jpgThe "Footprint Volcano" (Original NASA/MGS/MSSS b/w Frame)62 visiteCaption NASA originale:"This MGS-MOC image shows a small, dust-mantled volcano on the plains East of the giant martian volcano, Pavonis Mons".
Location near: 1,6° South Lat.; 105,7° West Long.
Image width: ~3 Km (~1.9 mi)
Illumination from: lower left
Season: Southern Spring
(8 voti)
|
|
North_Polar_Features-Polar_Cone-MGS-00.jpgNorth Polar "Cone" (Original NASA/MGS/MSSS b/w Frame)60 visiteCaption NASA originale:"This MGS-MOC image shows a cone-shaped hill, perhaps a remnant of a material that was once more laterally extensive across the area, on a textured plain in the Hyperboreus Labyrinthus Region in the North Polar Region of Mars.
The hill and its surroundings are covered with a blanket of solid CO2 which imparts a roughly homogeneous-tone to the scene.
Despite its shape, the feature is not a volcano; over the past 9 years, the MGS-MOC investigation has found no unambiguous evidence for volcanic landforms in the North Polar Region".
Location near: 79,5° North; 57,0° West
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Spring
(8 voti)
|
|
Volcanic_Features-Collapse_Pit_Chain-Tharsis_Tolus-MGS.JPGCollapse Pit-Chain near Tharsis Tholus (Original NASA/MGS/MSSS b/w Frame)66 visiteCaption NASA originale:"This MGS-MOC mage shows a portion of a Chain of Collapse Pits on a Lava and Dust-covered Plain, North/West of Tharsis Tholus —one of the many volcanic constructs in the Tharsis Region of Mars.
Pit chains, such as this one, are associated with the collapse of surface materials into subsurface voids formed by faulting and expansion — or extension — of the bedrock".
Location near: 16,4° North Lat. and 92,6° West Long.
Image width: ~3 Km (~1,9 mi)
Illumination from: lower left
Season: Northern Winter
(8 voti)
|
|
South_Polar_Features-Swiss_Cheese_Terrain-00.JPGEarly Fall at the South Pole54 visiteCaption NASA originale:"This MGS-MOC image shows a portion of the South Polar Residual Cap. The darkened edges of the pits and mesas are evidence of the removal — by sublimation — of frozen CO2 during the recent Martian Summer.
Summer ended and Autumn began in January 2006, shortly before this image was acquired".
Location near: 86,8° South; 90,5° West
Image width: ~3 Km (~1,9 mi)
Illumination from: upper left
Season: Southern Summer
(8 voti)
|
|
Controversial_Features-The_Villa-AB108405-SF-04.jpgUnusual Squared Structure on Mars (5)116 visite"...The deltaic dispersal at the base of the cliff face as well as the fluid's entire path from the conduit can be seen in this larger image, below. The four blue arcs coming from the pipe edge represent four separate flow rates and correspond to the 3 large gouges and 1 smaller gouge eroded away in that ledge beneath the pipe outflow. Note that the fluid streaming from the end of the pipe can be clearly seen as well as the fluids cascading down the lower cliff face and the deltaic dispersal of these fluids forming lobate "tongues". The dispersal of the fluids at the base of cliff clearly shows the change of albedo of the topography to a much lighter tone and the dispersal pattern due to the wet reflectance of the soils there.
NASA's satellite Mars Odyssey recently arrived at Mars with one of its primary objectives being -- finding water!. Perhaps they need to only ask those who are already there...".
(8 voti)
|
|
South_Polar_Features-Crater_with_Ice-A-M1000628-01.jpgSouth Polar Crater with residual Ice (EDM)69 visite...urtano vigorosamente con i "dati ufficiali" sul Pianeta Rosso così come forniti dalla NASA.
Tutto ciò premesso, la domanda di chiusura è facile (e la conoscete anche Voi): che cosa stiamo guardando?
(8 voti)
|
|
Noachis_Terra-M0705535-00.jpgBizarre-looking Features of Southern Noachis Terra (Original NASA/MGS/MSSS b/w M0705535 CTX Frame)66 visiteUn'altra serie di immagini che ci portano, attraverso tre passaggi, a dare un'occhiata ravvicinata al bordo di un grande cratere da impatto (di color grigio chiaro) il quale presenta una serie di piccole crepe di colore scuro (si vedono nella parte superiore del frame con dettaglio ravvicinato nel frame successivo) dalle quali sembra fuoriuscire qualcosa. Più in basso, sul fondo di questo cratere, una sorta di lago nero, bellissimo e (almeno per noi) del tutto inesplicabile- o forse no...ma ne parleremo in sede di commento alla terza parte di questa immagine.
Il frame che stiamo guardando ora (e dal quale sono stati ottenuti i due ingrandimenti che Vi proponiamo qui di seguito) è stato ottenuto da una distanza di circa 372 Km dal suolo di Marte e l'ora locale, al momento dello scatto, segnava le 14:50 circa.
(8 voti)
|
|
Utopia_Planitia-Smoke-D-M0202863-PCF-LXTT.jpgControversial Surface Feature in Utopia Planitia (EDM n.2)129 visiteUn irrequieto camino vulcanico si nasconde al di sotto di questo cratere e sta dando chiari segnali di risveglio? Oppure si tratta di fumi esausti che arrivano da un'installazione sotterranea?
O magari è un'illusione ottica e quello che appare come uno sbuffo di fumo nero è solo un dark wind-streak, come ne abbiamo già visti tanti su Marte e Venere?
Domande, domande, domande...
(8 voti)
|
|
Chasmas-Melas_Chasma-07.jpgSample scarp edge in layered unit in Melas Chasma or... Frozen Waterfalls on Mars? (7)85 visitevedi i commenti svolti nei quadri precedenti
(8 voti)
|
|
Craters-Louth_Crater-FHA00988.jpgLouth Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)260 visiteLongitude of image center: 257,06° West
Latitude of image center: 70,63° North
Scaled pixel width: 273,95 meters
Scaled image width: 134,00 Km
Scaled image height: 117,89 Km
Solar Longitude (Ls): 111,09°
Local True Solar Time: 14,04 decimal hours
Emission Angle: 9,38°
Incidence Angle: 50,51°
Phase Angle: 44,37°
North Azimuth: 95,79°
Sun Azimuth: 313,34°
Spacecraft Altitude: 429,28 Km
Slant Distance: 434,44 KmMareKromium
(7 voti)
|
|
Craters-Louth_Crater-FHA00989.jpgLouth Crater (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)235 visiteLongitude of image center: 258,32° West
Latitude of image center: 70,58° North
Scaled pixel width: 270,95 meters
Scaled image width: 132,28 Km
Scaled image height: 117,97 Km
Solar Longitude (Ls): 111,09°
Local True Solar Time: 13,96 decimal hours
Emission Angle: 5,68°
Incidence Angle: 50,22°
Phase Angle: 46,39°
North Azimuth: 96,97°
Sun Azimuth: 313,08°
Spacecraft Altitude: 429,28 Km
Slant Distance: 431,16 KmMareKromium
(7 voti)
|
|
| 511 immagini su 43 pagina(e) |
 |
|
|
5 | |
|
|
|
|
|
|
