| Piú votate - Mars Reconnaissance Orbiter (MRO) |
ESP_023464_0945_RED_abrowse-PCF-LXTT-01.jpgSouth Polar Summer (EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)409 visiteMars Local Time: 16:28 (Middle Afternoon)
Coord. (centered): 85,3° South Lat. and 319,7° East Long.
Spacecraft altitude: 245,2 Km (such as about 153,2 miles)
Original image scale range: 49,1 cm/pixel (with 2 x 2 binning) so objects ~ 1 mt and 47 cm across are resolved
Map projected scale: 50 cm/pixel
Map projection: POLAR STEREOGRAPHIC
Emission Angle: 0,4°
Sun-Mars-Spacecraft (or "Phase") Angle: 78,2°
Solar Incidence Angle: 78° (meaning that the Sun is about 12° above the Local Horizon)
Solar Longitude: 336,2° (Northern Winter)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Dr Paolo C. Fienga - Lunar Explorer ItaliaMareKromium
(7 voti)
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PSP_003595_2115_RED_browse~0.jpgOlympus' Aureole (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)64 visiteThis image samples the rugged central portion of the mysterious "aureole" that extends to the West and North of Olympus Mons.
While many ideas for its formation have been advanced over the decades, these days it is generally thought to be a giant landslide deposit. The scene here fits that model with kilometer-scale (mile-sized) rocky hummocks and blocks strewn about. The blocks themselves are now covered with dust that is slumping off in small landslides or avalanches. These leave dark streaks on the sides of the blocks. MareKromium
(7 voti)
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Craters-Palos_Crater-PIA12994.jpgDeposits on the Floor of Palos Crater (Possible Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)94 visiteThis image shows a portion of the Floor of Palos Crater, on Equatorial Mars.
The High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter recorded this image on March 8, 2010.
The target for this HiRISE observation was a suggestion submitted through the camera team's HiWish public-suggestion program. For more information about how to submit target suggestions, see http://uahirise.org/hiwish/.
The Floor appears bumpy with high-standing layered Knobs. Most of the Terrain on the Floor is weathering into meter-size (yard-size) polygonal blocks. The circular structures in the image, many of which are filled with darker wind-blown material, are eroded impact craters.
Palos Crater is breached in the South by the approx. 180-Km-long (about 112-mile-long) Tinto Vallis. Water transported along Tinto Vallis could have could have collected into Palos Crater to form a lake that later drained to the North.
Sediments carried by Tinto Vallis would have also been deposited within Palos Crater, so the layered unit we see along the floor today could represent these fluvial sediments.
This image covers a swath of ground about 1 Km (approx. two-thirds of a mile) wide. It is a portion of HiRISE observation ESP_016943_1775, which is centered at 2,67° South Latitude and 111,13° East Longitude. The season on Mars is southern-hemisphere autumn. Other image products from this observation are available at http://hirise.lpl.arizona.edu/ESP_016943_1775.MareKromium
(7 voti)
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ESP_16978_1730-MF-LXTT1.jpgFalling Down... (an Image-Mosaic by Dr Marco Faccin - Lunexit Team)66 visiteThe lower flanks of Arsia Mons, one of the giant volcanoes on Mars, is riddled with Pits of various sizes. These have been of great interest to a number of researchers because they have the potential to be openings into underground caverns.
Such caverns have some potential for holding ice and offer protection from radiation and small meteorites. These are good things if one is looking for a safe place for current life on Mars or future human life.
However, this image shows some of the pitfalls of such hopes. Most of these pits are largely filled with rubble and dust that hide any potential links to larger underground areas. Furthermore, the entrances are steep and rocky, making them difficult areas to traverse. They would be a very exciting, if not safe, place to visit!MareKromium
(7 voti)
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PSP_001370_2505_RED_abrowse.jpgIce Patch or Frozen Lake? (Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)55 visitenessun commentoMareKromium
(7 voti)
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ESP_014423_1040_RED_abrowse.jpgSouth Polar Region (Natural Colors; credits: Dr Paolo C. Fienga - Lunexit Team)57 visiteSomewhere in this patterned landscape, less than 1000 Km (about 600 miles) from the South Pole of Mars, a treasure may be hiding.
In January 1999, NASA launched a rocket containing the Mars Polar Lander (MPL), an exploration vehicle with a weather station and a subsurface probe designed to search for water ice, towards the Layered Terrain near the Martian South Pole. The layers are thought to be a sequence of alternating dust-rich and dust-poor ice deposited by the seasonal advance and retreat of the South Polar Ice Cap and could be an important record of climate on the Red Planet.
On 3 December 1999, just before the Lander entered the Martian Atmosphere, MPL went silent. Investigations propose the most likely cause of the mission failure is that the Spacecraft’s computers misinterpreted the release of the Lander’s legs in preparation for descent as touch-down on the Martian Surface, causing descent engines to shut off when the lander was still 40 meters (130 feet) above ground.
However, no one knows for sure.
An immediate search began for the remains of the MPL using images from Mars Global Surveyor. HiRISE is continuing the search with high resolution images of the area in which MPL could, most likely, have crash-landed. MareKromium
(7 voti)
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ESP_014417_1975_RED_abrowse-00.jpgChrise Planitia (Natural Colors; credits: Lunexit)59 visitenessun commentoMareKromium
(7 voti)
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ESP_014326_1715_RED_abrowse.jpgLight-toned Layering along Jus Chasma's Wallrock and Plains (Natural Colors; credits: Lunexit)56 visitenessun commentoMareKromium
(7 voti)
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ESP_014404_1275-GB-LXT-03.jpgExtremely Unusual Surface Feature in Argyre Planitia (Natural Colors - SuperEDM n.2 - credits: Dr G. Barca & Lunexit)55 visitenessun commentoMareKromium
(7 voti)
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ESP_014392_0955_RED_abrowse.jpgSouth Polar Residual Cap Monitoring - Downwasting Processes (Natural Colors; credits: Lunexit)57 visitenessun commentoMareKromium
(7 voti)
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ESP_014418_0930_RED_abrowse.jpgSouth Polar Residual Cap Monitoring (Natural Colors; credits: Lunexit)60 visitenessun commentoMareKromium
(7 voti)
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ESP_014418_1790_RED_abrowse.jpgHebes Chasma (Natural Colors; credits: Lunexit)58 visitenessun commentoMareKromium
(7 voti)
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