| Piú votate - SOLAR SYSTEM |
Titan-Regions-Adiri_Region-PIA08995.jpgFlying over Adiri64 visiteCaption NASA:"Within the windswept wastes of Titan's Equatorial Dune Desert lies the 1.700-Km (1.050-mi) wide bright Region called Adiri, seen here at center.
The intrepid Huygens probe landed off the North-Eastern edge of Adiri in January 2005.
This view looks toward the Anti-Saturn side of Titan (5.150 Km, or about 3.200 miles across) -- the side that always faces away from Saturn as the moon orbits. North on Titan is up and rotated 26° to the right.
The image was taken using a spectral filter sensitive to wavelengths of infrared light centered at 939 nanometers. The view was acquired with the Cassini spacecraft wide-angle camera on June 14, 2007 at a distance of approx. 157.000 Km (about 98.000 miles) from Titan. Image scale is roughly 9 Km (about 6 miles) per pixel".MareKromium 
(5 voti)
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Triton-PIA02213-moe-ELEI.jpgThe limb of Triton (natural colors - elab. Lunexit)74 visitenessun commentoMareKromium
(5 voti)
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Enceladus-Fly-By-EB.jpgEnceladus' Fly-By (Image-Mosaic; credits: Elisabetta Bonora - Lunexit Team)78 visiteUn altro Lavoro che Vi presentiamo con immenso piacere e soddisfazione...MareKromium
(8 voti)
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Enceladus-PIA07459.jpgEnceladus in infrared81 visiteCaption NASA originale:"This infrared color image of Enceladus was obtained by the Cassini visual infrared mapping spectrometer on March 9, 2005, when the Cassini spacecraft was 9.145 Km away from Enceladus.
Enceladus shows substantial differences in composition or, more likely, particle size on its surface. Redder areas correspond to larger grain sizes, and appear to be correlated with craters and ridged regions. The surface of Enceladus is nearly pure water ice; no other components have been identified yet. The middle of the image is located at the equator near a longitude of 210°.
The image is about 100 Km square and it shows the ratio of reflected light at 1,34 and 1,52 microns, wavelengths that are not visible to the human eye".
(8 voti)
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Enceladus-N0016088-114-MF-LXTT.jpgEnceladus (an Image-Mosaic in Natural Colors; credits for the additional process. and color.: Dr Marco Faccin - Lunexit Team)98 visitenessun commentoMareKromium
(7 voti)
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Enceladus-EB3-LXTT.jpgThe always "Fresh Face" of Enceladus (possible Natural Colors; credits for the additional process. and color.: Elisabetta Bonora - Lunexit Team)133 visitenessun commentoMareKromium
(7 voti)
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Hyperion-PIA08240.jpgPink Hyperion...91 visiteCaption NASA originale:"Unlike most of the dull grey moons in the Solar System, Hyperion's color is a rosy tan (---> Light Pink), as this view shows.
The origin of the moon's unusual hue is not known. Some scientists suspect the color comes from falling debris from moons further out.
A similar origin has been suggested for the dark reddish material on Saturn's moon Iapetus.
Images taken using red, green and blue spectral filters were combined to create this natural color view. The images were taken in visible light with the Cassini spacecraft narrow-angle camera on June 28, 2006 at a distance of approx. 291.000 Km (about 181.000 miles) from Hyperion. Image scale is roughly 2 Km (a little more than 1 mile) per pixel".
(8 voti)
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Titan - artwork.jpgHuygens on Titan95 visiteThin methane clouds dot the horizon and a narrow methane spring or "methanefall" flows from the cliff at left and drifts mostly into vapor. Smooth ice features rise out of the methane/ethane lake, and crater walls can be seen far in the distance.
(14 voti)
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Japetus-A-W-Deathstar-16a.jpgThe "Pentagon" of Japetus76 visiteAl momento dell'impatto, la superficie di Giapeto (o della Luna, o di qualsiasi altro pianeta) si fonde, in ragione del calore viene sprigionato in quei momenti e la meteora, letteralmente, compie una sorta di 'splash-down' nel "corpo" del pianeta colpito (guardate cosa succede quando una goccia d'acqua cade nell'acqua...). La crosta fusa che viene proiettata verso l'alto a seguito dell'urto, viste le temperature del "deep space", solidifica in pochissimo tempo e cosė, quello che rimane dopo l'impatto, č una "colonna di roccia", tanto pių alta quanto maggiore fu il quantitativo di crosta fusa che venne sollevato. Teoria credibile? Forse si e forse no, ma questo č l'approccio scientifico al problema! Continuiamo: guardate questo gigantesco rilievo montuoso posto a ridosso dell'equatore di Giapeto. Esso č fatto di colline, montagne, crateri e crepacci. Tutti rilievi naturali, eppure...Eppure non sembra che esso disegni un pentagono? E' anche questo un rilievo naturale e scientificamente spiegabile?
(4 voti)
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Titan-Regions-Ganesa_Macula_Region-PIA09176.jpgGanesa Macula71 visiteCaption NASA:"This radar image of Titan shows Ganesa Macula, interpreted as a cryovolcano (ice volcano), and its surroundings. Cryovolcanism is thought to have been an important process on Titan and may still be happening today.
This mosaic was made from images obtained by the Cassini radar mapper on two flybys. The lower part of the image was from the flyby on Oct. 26, 2005, while the upper part was from the Jan. 13, 2007, flyby.
Ganesa macula is the dark circular feature seen on the lower left of the mosaic.
Bright rounded features, interpreted as cryovolcanic flows, are seen towards the top and the right of the mosaic.
This image mosaic was taken in synthetic aperture mode. The resolution of the images is approx. 350 mt (1150 feet). North is toward the top. The image mosaic is about 570 Km (about 354 miles) wide and 390 Km (about 240 miles) high".
(15 voti)
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Enceladus-N00153894-97-EB-LXTT.jpgSubtle Color Variations on Enceladus (Enhanced Natural Colors; credits forb the additional process. and color.: Elisabetta Bonora - Lunexit Team)112 visitenessun commentoMareKromium
(9 voti)
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