Mars Reconnaissance Orbiter (MRO)
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PSP_010057_2040_RED.JPGUnnamed Crater with Ridges and DD Tracks (natural colors; credits: Lunexit)52 visiteThis image shows two features of interest on the floor of a large impact crater. The first is the set of roughly parallel ridges on the crater floor that point towards the crater center north of the image. These may be Inverted Stream Channels, where old streambeds became resistant to erosion due to cementation or simply deposition of large rocks. This is consistent with the slightly wavy, sinuous shape of the ridges, but these examples are not particularly well-preserved.
More recently, this site has become blanketed by dust, settling out after Global Dust Storms. This obscures much of the fine-scale geology, but allows HiRISE to see the effects of a recent process: Dust Devils. These have left the dark stripes across the surface by disturbing the dust cover. Most followed straight paths, but a few loops or turns are visible. Dust Devils may be an important factor in the Martian climate system because they lift dust into the atmosphere, helping to trigger larger Dust Storms.MareKromium
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Craters-Unnamed_Crater-ESP_017975_1705-PCF-LXTT-IPF.jpgUnnamed Crater with Ridges (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga/Lunar Explorer Italia/Italian Planetary Foundation)63 visiteMars Local Time: 15:20 (Early Afternoon)
Coord. (centered): 9,515 South Lat. and 16,433 East Long.
Spacecraft altitude: 261,3 Km (such as about 162,267 miles)
Original image scale range: 52,3 cm/pixel (with 2 x 2 binning) so objects ~ 1 mt and 57 cm across are resolved
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 0,7
Phase Angle: 60,4
Solar Incidence Angle: 60 (meaning that the Sun was about 30 above the Local Horizon at the time the picture was taken)
Solar Longitude: 96,6 (Northern Summer - Southern Winter)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer Italia
This picture (which is a NASA - Original Mars Reconnaissance Orbiter NON-Map Projected CTX b/w frame identified by the serial n. ESP_025557_1705) has been additionally processed and then colorized in Absolute Natural Colors (such as the colors that a human eye would actually perceive if someone were onboard the NASA - Mars Reconnaissance Orbiter and then looked down, towards the Surface of Mars), by using an original technique created - and, in time, dramatically improved - by the Lunar Explorer Italia Team.MareKromium
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ESP_020086_2020_RED_abrowse-00.jpgUnnamed Crater with Light-toned Layered Bedrock (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)73 visitenessun commentoMareKromium
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ESP_025665_1825-PCF-LXTT-01.jpgUnnamed Crater with Layers of Water-deposited Sediments (EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)121 visiteMars Local Time: 14:56 (Early Afternoon)
Coord. (centered): 2,317 North Lat. and 307,960 East Long.
Spacecraft altitude: 269,9 Km (such as about 168,7 miles)
Original image scale range: 54,0 cm/pixel (with 2 x 2 binning) so objects ~ 1 mt and 62 cm across are resolved (with 4 x 4 binning)
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 2,3
Sun - Mars - MRO (or "Phase") Angle: 48,9
Solar Incidence Angle: 47 (meaning that the Sun is about 43 above the Local Horizon)
Solar Longitude: 58,1 (Northern Spring/Southern Fall)
Credits: NASA/JPL/University of Arizona MareKromium
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ESP_025665_1825-PCF-LXTT-00.jpgUnnamed Crater with Layers of Water-deposited Sediments (CTX Frame - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)71 visiteMars Local Time: 14:56 (Early Afternoon)
Coord. (centered): 2,317 North Lat. and 307,960 East Long.
Spacecraft altitude: 269,9 Km (such as about 168,7 miles)
Original image scale range: 54,0 cm/pixel (with 2 x 2 binning) so objects ~ 1 mt and 62 cm across are resolved (with 4 x 4 binning)
Map projected scale: 50 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 2,3
Sun - Mars - MRO (or "Phase") Angle: 48,9
Solar Incidence Angle: 47 (meaning that the Sun is about 43 above the Local Horizon)
Solar Longitude: 58,1 (Northern Spring/Southern Fall)
Credits: NASA/JPL/University of ArizonaMareKromium
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PSP_004052_2045_RED_abrowse-02-PIA13726.jpgUnnamed Crater with Layers near Mawrth Vallis (Enhanced Natural Colors; credits: NASA/JPL-Caltech/University of Arizona)111 visiteThis image covers part of an Unnamed Impact Crater roughly 4 Km (approx. 2,5 miles) in diameter; the upper portion of the picture shows a one Km segment of the Crater's Inner Wall and Rim.
The Surface outside the Crater is relatively dark, while the Inner Wall of the Crater exposes lighter, Layered Bedrock of diverse colors. A few dark patches on the Crater Wall have small Dunes or Ripples on their surfaces, and are likely Pits filled with Dark Sand. This Crater provides a window into the Sub-Surface of Mars, revealing Layered Sedimentary Deposits.
Just about 30 Km (approx. 18,6 miles) to the East of this Crater lies Mawrth Vallis, an ancient Channel that may have been carved by catastrophic Floods.
In Layered Deposits surrounding Mawrth Vallis, the orbiting spectrometers OMEGA (on Mars Express) and CRISM (on MRO) have detected Phyllosilicate (such as Clay) minerals, which must have formed in the presence of water.
In this Region on Mars, the colors of the Layers seen by HiRISE often correlate with distinct water-bearing minerals observed by CRISM, so the color diversity seen here may reflect a dynamic environment at this location on early Mars.
Note: the color in these images is enhanced; it is not as it would normally appear to the human eye.MareKromium
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PSP_004052_2045_RED_abrowse-01.jpgUnnamed Crater with Layers near Mawrth Vallis (EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)102 visitenessun commentoMareKromium
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PSP_004052_2045_RED_abrowse-00.jpgUnnamed Crater with Layers near Mawrth Vallis (Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)88 visitenessun commentoMareKromium
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ESP_011277_1825_RED_abrowse.jpgUnnamed Crater with Layers in Meridiani Planum (Natural Colors; credits: Lunar Explorer Italia)69 visiteMars Local Time: 15:47 (middle afternoon)
Coord. (centered): 2,2 North Lat. and 357,5 East Long.
Spacecraft altitude: 270,8 Km (such as about 169,2 miles)
Original image scale range: 27,1 cm/pixel (with 1 x 1 binning) so objects ~81 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 3,9
Phase Angle: 60,7
Solar Incidence Angle: 57 (meaning that the Sun is about 33 above the Local Horizon)
Solar Longitude: 178,0 (Northern Summer)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
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ESP_011910_1825_RED_abrowse.jpgUnnamed Crater with Layering in Meridiani Planum (Natural Colors; credits: Lunar Explorer Italia)52 visitenessun commentoMareKromium
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ESP_025082_2295-PCF-LXTT-1.jpgUnnamed Crater with Gullies in Vastitas Borealis (CTX Frame + EDM - Absolute Natural Colors; credits for the additional process. and color.: Dr Paolo C. Fienga - Lunexit Team)112 visiteMars Local Time: 14:45 (early afternoon)
Coord. (centered): 49,1 North Lat. and 21,1 East Long.
Spacecraft altitude: 335,5 Km (such as about 209,7 miles)
Original image scale range: 33,6 cm/pixel (with 1 x 1 binning) so objects ~ 1 mt and 1 cm across are resolved
Map projected scale: 25 cm/pixel
Map projection: EQUIRECTANGULAR
Emission Angle: 25,5
Sun - Mars - MRO (or "Phase") Angle: 27,1
Solar Incidence Angle: 48 (meaning that the Sun is about 42 above the Local Horizon)
Solar Longitude: 38,0 (Northern Spring)
Credits: NASA/JPL/University of Arizona
Additional process. and coloring: Lunar Explorer ItaliaMareKromium
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ESP_011898_2175_RED_abrowse.jpgUnnamed Crater with Gullies in Acidalia Planitia (Natural Colors; credits: Lunar Explorer Italia)72 visitenessun commentoMareKromium
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