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Huygens-Down-09.jpgHuygens' Descent to Titan: 20 Km from the Surface (credits: R. Pascal)68 visiteA closeup view of Huygens at an altitude of about 20 Km. MareKromiumDic 17, 2008
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Huygens-Down-00.jpgHuygens' Descent to Titan: 115 Km from the Surface (credits: R. Pascal)71 visiteThe Huygens Probe just jettisoned its Main-parachute and is now hanging under the smaller Stabiliser-parachute. This Stabiliser-parachute will carry Huygens for the next two hours all the way down to the Surface of Titan. MareKromiumDic 17, 2008
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Huygens-Down-01.jpgHuygens' Descent to Titan: 110 Km from the Surface (credits: R. Pascal)68 visiteThe haze of Titan's Atmosphere preferently scatters blue and UltraViolet light: this is the reason why the Outer Atmosphere of Titan appears blue in some Cassini images. In reality, the effect of a blue outer atmosphere on Titan may be less prominent than on this rendered image.
This was the altitude were the main parachute was jettisoned and first surface structures came into view for Huygens' cameras.MareKromiumDic 17, 2008
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Huygens-Down-02.jpgHuygens' Descent to Titan: 100 Km from the Surface (credits: R. Pascal)72 visiteThe true color of Titan's Sky at this altitude is expected to be slighly less vivid than in this rendering, but should nevertheless come close to it. The transparency of the atmosphere would also be slightly lower to the naked eye. MareKromiumDic 17, 2008
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Huygens-Down-03.jpgHuygens' Descent to Titan: 90 Km from the Surface (credits: R. Pascal)72 visiteThe blue color of the sky slowly vanishes with decreasing distance to the Surface and is replaced by a brownish tint. Huygens is still above a layer of complex organic condensate haze, that prevents a clear view down to the Surface.MareKromiumDic 17, 2008
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Huygens-Down-04.jpgHuygens' Descent to Titan: 85 Km from the Surface (credits: R. Pascal)67 visiteAltitude: about 85 Km and still nearly two hours of descent are separating Huygens from the Surface of Titan.MareKromiumDic 17, 2008
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Hellas_Basin.jpgHellas Basin78 visiteCaption NASA:"What created this unusual terrain on Mars?
The floors of several Mid-Latitude craters in Hellas Basin on Mars appear unusually grooved, flat, and shallow. New radar images from the Mars Reconnaissance Orbiter bolster an exciting hypothesis: huge glaciers of buried ice. Evidence indicates that such glaciers cover an area larger than a city and extend as much as a kilometer deep.
The ice would have been kept from evaporating into the thin Martian air by a covering of dirt. If true, this would indicate the largest volume of water ice outside of the Martian Poles, much larger than the frozen puddles recently discovered by the Phoenix Lander.
Such lake-sized ice blocks located so close to the Martian Equator might make a good drinking reservoir for future astronauts exploring Mars.
How the glaciers originally formed remains a mystery" (...).
Nota Lunexit: ATTENZIONE! Questa immagine - per bella e dettagliata che sembri o che sia - NON E' UNA FOTOGRAFIA! Essa il risultato finale di un complesso mix di immagini reali le quali sono state riprese ed assemblate e quindi riprocessate digitalmente (vedasi, per maggiori informazioni, il "Solar System Visualization Project"). Un'opera fantastica e meritoria ed un risultato indubbiamente suggestivo ma...Questa immagine NON E' rappresentativa di una realt specifica.
Essa solo la ricostruzione digitale di una realt specifica (il Bacino di Hellas), il che non esattamente la stessa cosa...MareKromiumNov 24, 2008
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The_Rings_above_the_Clouds.JPGAbove the Clouds of Saturn...84 visitenessun commentoMareKromiumOtt 22, 2008
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Titanian_Sunset.JPGSunset on Titan89 visiteUna "Fantasia" su Titano, certo molto suggestiva, ma intrinsecamente errata: Titano, infatti, a dispetto di quanto mostrato in questo frame e nella stragrande maggioranza delle ricostruzioni di fantasia "Made by NASA", un mondo immerso nel silenzio pi assoluto ed in una perenne (e, riteniamo, pesante) semi-oscurit.
Un Mondo in cui il Sole - lontanissimo - se e quando riesce a farsi spazio tra le nebbie giallastre che lo avvolgono, dovrebbe apparire simile ad una stella, certo un p pi brillante delle altre, ma la cui luminosit sarebbe comunque insufficiente dal creare un "effetto giorno" (in termini simil-terrestri o simil-marziani) e quindi ben lungi dal poter rischiarare la sua gelida superficie nel modo in cui viene qui - davvero assai immaginificamente - ipotizzato.
Forse, come potrete leggere nell'articolo di prossima pubblicazione su TruePlanets - ed intitolato "Beyond the Fog" -, la maggiore (se non unica) sorgente di illuminazione discreta per Titano dovrebbe essere il SaturnShine, o "Chiaro di Saturno", quando esso, letteralmente, "splende" - in fase piena - nel suo Cielo cupo e nebbioso...MareKromiumOtt 22, 2008
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Mercury.jpgDawn at Mercury87 visitenessun commentoMareKromiumOtt 17, 2008
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Enceladus-IMG003035.jpgNot for Human Eyes... (by Karl Kofoed)81 visiteCaption NASA:"In this artist's rendering, a distant Sun forms a halo (refracted sunlight by ice crystals) amid streamers of pure water ice particles, which spew into space from cracks in the South Polar surface of Saturn's tiny moon Enceladus". MareKromiumApr 09, 2008
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Enceladus-IMG003036.jpgThe Fountains of Enceladus (by Karl Kofoed)69 visiteCaption NASA:"This artist's painting of the South Polar Region of Saturn's tiny moon Enceladus shows massive jets of water ice being blasted into space. The moon's lack of atmosphere and low gravity prevents the jets from fanning out quickly as they might on a more massive world. These plumes feed the extensive E-Ring of Saturn". MareKromiumApr 09, 2008
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