From Ashes to Eternity: the Phoenix Mars Mission
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PHOE-SOL079-lg_21574.jpgMorning "Water Frost" on Vastitas - Sol 79 (false (?) colors; credits: NASA)54 visiteCaption NASA:"A thin layer of water frost is visible on the ground around NASA's Phoenix Mars Lander in this image taken by the Surface Stereo Imager at 06:00 a.m. on Sol 79 (August 14, 2008), the 79th Martian day after landing. The frost begins to disappear shortly after 6 a.m. as the sun rises on the Phoenix Landing Site. The Sun was about 22° above the horizon when the image was taken, enhancing the detail of the polygons, troughs and rocks around the Landing Site.
This view is looking east South-East with the Lander's eastern Solar Panel visible in the bottom lefthand corner of the image. The rock in the foreground is informally named "Quadlings" and the rock near center is informally called "Winkies". This false color image has been enhanced to show color variations".
Nota Lunexit: come direbbe Mr Spock "...la NASA, negli anni, non cambia mai, e la sua predilezione per l'irrilevante lo conferma ampiamente...". Già: ci dicono i nomi che hanno dato ai sassi, ma non ci spiegano perchè, a loro modo di vedere, questo frame sarebbe a falsi colori...MareKromium
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PHOE-SOL080-MF.jpgUs, in the Sunset... - Sol 80 (natural colors; credits: Dr M. Faccin)53 visitenessun commentoMareKromium
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PHOE-SOL080-MF1.jpgVastitas' Surface - Sol 80 (natural colors; credits: Dr M. Faccin)53 visitenessun commentoMareKromium
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PHOE-SOL080-lg21570-21579-21580-2.jpgSunset - Sol 80 (Superdefinition; credits: Dr G. Barca)56 visitenessun commentoMareKromium
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PHOE-SOL080-lg21570-21579-21580-3.jpgSunset - Sol 80 (Superdefinition and natural colors; credits: Dr G. Barca & Lunexit)53 visitenessun commentoMareKromium
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PHOE-SOL080-lg21572-21577-21581-2.jpgSunset - Sol 80 (Superdefinition; credits: Dr G. Barca)53 visitenessun commentoMareKromium
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PHOE-SOL082-lg22820-22828-22830.jpgVastitas' Panorama - Sol 82 (Superdefinition and natural colors; credits: Dr G. Barca)53 visitenessun commentoMareKromium
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PHOE-SOL082-lg22856-22857-22858.jpgVastitas' Panorama - Sol 82 (Superdefinition and natural colors; credits: Dr G. Barca)53 visitenessun commentoMareKromium
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PHOE-SOL085-lg23590-23591-23598-2.jpgVastitas' Horizon - Sol 85 (natural colors; credits: Dr G. Barca & Lunexit)96 visitenessun commentoMareKromium
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PHOE-SOL085-lg23636-23637-23641-2.jpg...Holes... - Sol 85 (Superdefinition and True Colors; credits: Dr G. Barca)107 visitenessun commentoMareKromium
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PHOE-SOL088-PIA11058.jpgMartian "Caterpillar" - Sol 88 (natural colors; credits: Lunexit)53 visiteAs NASA's Phoenix Mars Lander excavates trenches, it also builds piles with most of the material scooped from the holes. The piles, like this one called "Caterpillar", provide researchers some information about the soil.
On Aug. 24, 2008, during the late afternoon of the 88th Martian day after landing, Phoenix's Surface Stereo Imager took separate exposures through red, green and blue filters that have been combined into this approximately true-color image. This conical pile of soil is about 10 cm (4") tall.
The sources of material that the Robotic Arm has dropped onto the Caterpillar pile have included the "Dodo" and ""Upper Cupboard" trenches and, more recently, the deeper "Stone Soup" trench.
Observations of the pile provide information, such as the slope of the cone and the textures of the soil, that helps scientists understand properties of material excavated from the trenches.
For the Stone Soup trench in particular, which is about 18 cm (7") deep, the bottom of the trench is in shadow and more difficult to observe than other trenches that Phoenix has dug. The Phoenix team obtained spectral clues about the composition of material from the bottom of Stone Soup by photographing Caterpillar through 15 different filters of the Surface Stereo Imager when the pile was covered in freshly excavated material from the trench.
The spectral observation did not produce any sign of water-ice, just typical soil for the site. However, the bigger clumps do show a platy texture that could be consistent with elevated concentration of salts in the soil from deep in Stone Soup. The team chose that location as the source for a soil sample to be analyzed in the lander's wet chemistry laboratory, which can identify soluble salts in the soil.MareKromium
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PHOE-SOL088-lg24834-24838-24839-2.jpgVastitas' Panorama - Sol 88 (Superdefinition and natural colors; credits: Dr G. Barca)54 visitenessun commentoMareKromium
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