| Piú votate - Mars through the eyes of Soujourner-Pathfinder |
SOU-SOL003-80903_full.jpgHorizon - Sol 390 visiteOriginal caption:"This image shows the diversity of rocks at the Ares Vallis site. The large rocks seem to lean in a uniform direction (so-called "imbrication"). This observation suggests that catastrophic floods once ran through the site. Seen on the horizon is a faint peak".
(1 voti)
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SOU-SOL003-80904_full.jpgPanorama with Twin Peaks - Sol 396 visiteOriginal caption:"Named Twin Peaks, the formation of two hills in the background are of extreme geological interest. The left hill has a smooth apron which may have been caused by gravitational processes or water. The hill on the right seems to have horizontal bands running through it. As of yet unidentified, the bands may be deposits, sedimentary layers, or terraces cut by erosion.
The Twin Peaks in the distance are approximately 1,6 Km from the Sagan Memorial Station. The rocks in the foreground are very diverse. Some are rounded and suggest transport by water, others are tabular and angular and indicate non-aqueous deposition. Preliminary hypotheses are that the angular rocks were thrown from ancient, nearby impact crater sites".
(1 voti)
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SOU-SOL003-80893_full.jpgAres Vallis' Horizon and Pathfinder - Sol 2130 visiteOriginal caption:"Taken on July 5, this image shows portions of the high gain antenna, a petal and the retracted airbags. Geologists are eager to examine the rocks of the Ares Vallis terrain. As predicted, the landing site has provided a grab bag of diverse rock types and sizes".
(1 voti)
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SOU-SOL002-80828_full.jpgDetails and Features of the Pathfinder - Sol 1112 visiteOriginal caption:"Several prominent features of Mars Pathfinder and surrounding terrain are seen in this image, taken by the Imager for Mars Pathfinder on July 4 (Sol 1), the spacecraft's first day on the Red Planet. Portions of a lander petal are at the lower part of the image. At the left, the mechanism for the high-gain antenna can be seen. The dark area along the right side of the image represents a portion of the low-gain antenna. The radiation calibration target is at the right. The calibration target is made up of a number of materials with well-characterized colors. The known colors of the calibration targets allow scientists to determine the true colors of the rocks and soils of Mars. Three bull's-eye rings provide a wide range of brightness for the camera, similar to a photographer's grayscale chart. In the middle of the bull's-eye is a 5-inch tall post that casts a shadow, which is distorted in this image due to its location with respect to the lander camera. A large rock is located at the near center of the image. Smaller rocks and areas of soil are strewn across the Martian terrain up to the horizon line".
(1 voti)
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SOU-SOL002-80839_1full.jpgMars Panorama: photomosaic - Sol 1138 visiteGiunzioni fatte male, parte del frame predisposto per la visione anaglifica (3D) - alla Vostra Sx - ed incredibili errori nel montaggio dei diversi pezzi dell'immagine complessiva: fretta o totale incompetenza? Sia nell'uno che nell'altro caso, la NASA - in situazioni come questa - è inescusabile!
Caption originale:"The Sojourner rover and undeployed ramps onboard the Mars Pathfinder spacecraft can be seen in this image, by the Imager for Mars Pathfinder (IMP) on July 4 (Sol 1). This image has been corrected for the curvature created by parallax. The microrover Sojourner is latched to the petal, and has not yet been deployed. The ramps are a pair of deployable metal reels which will provide a track for the rover as it slowly rolls off the lander, over the spacecraft's deflated airbags, and onto the surface of Mars. Pathfinder scientists will use this image to determine whether it is safe to deploy the ramps. One or both of the ramps will be unfurled, and then scientists will decide whether the rover will use either the forward or backward ramp for its descent".
(1 voti)
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SOU-SOL006-backshell-00.jpgThe "Silver-Sphere", near Pathfinder... - Sol 6190 visiteEd ecco un frame che abbiamo fatto davvero fatica a trovare, ma del quale conoscevamo l'esistenza: la Backshell della Sonda Pathfinder.
E' evidente che le fattezze di questo oggetto, tessitura superficiale e luminosità incluse, sono IDENTICHE a quelle dell'oggetto rinvenuto dal Rover Spirit a poca distanza dal Cratere Bonneville (leggete l'articolo pubblicato su TruePlanets per maggiori informazioni e dettagli).
Mistero risolto, dunque? La Silver Sphere di Spirit è solo la sua Backshell? Apparentemente si, ma è la NASA (si, proprio la NASA!) ad ESCLUDERE questa ipotesi, collocando la Backshell di Spirit (vedi la mappa allegata all'articolo summenzionato) in un punto completamente diverso rispetto al luogo in cui le immagini che abbiamo, invece, la collocherebbero (e cioè a poche decine di metri dal rim di Bonneville Crater).
E allora? E allora, come si è detto...Il Mistero si infittisce!
Caption NASA originale:"Super-Resolution image showing the Mars Pathfinder Backshell - This image was created from 25 nearly identical frames to give one HR view of the area looking towards Big Crater. The backshell is the bright white spot at middle-left. The 2,8 mt wide and 2,1 mt high Backshell, separated from the Lander a few seconds before landing, and appears to be about 1200 mt from the Lander, to the South-South-East".
(11 voti)
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SOU-SOL011-marspath_sunset4.jpgClouds in the Martian sunset (True Colors; credits: NASA/JPL)121 visiteUn bellissimo e "veritiero" (a quanto dicono alla NASA) tramonto Marziano a colori. Questa la caption originale all'immagine, ripresa dalla Sonda Pathfinder nel 1997: "You've had a hard day rolling past Martian rocks, so now just relax your APXS and enjoy the Martian Sunset. The above pictures taken by Mars Pathfinder highlight how clouds vary during the end of a Martian day. The Atmosphere on Mars is much thinner than on Earth and dominated by CO2 rather than Nitrogen. Clouds on Mars can be Water or Carbon Dioxide based, depending on conditions, whereas Earth's clouds are all water based. At night the temperature at Sagan Memorial Station will dip from about -15 degrees Celsius (+4 Fahrenheit) to -77 degrees Celsius (-107 Fahrenheit). Temperatures only this cold won't bother Sojourner".
Dati interessanti, senza dubbio. Voi che ne dite? I colori Vi sembrano veritieri?
(21 voti)
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SOU-SOL033-PIA01006.jpgThe "Meteorology Mast" - MET - Sol 33 (Enhanced Natural Colors; credits: NASA/JPL)92 visiteCaption NASA originale:"The Mars Pathfinder Meteorology Mast casts a shadow on the Lander Solar Array, as seen in this superpan mosaic. Looking to the South/East during the morning, the windsocks are slightly tilted, indicating the presence of a light wind from the South/West. The MET mast measured the temperature, pressure and wind speed at the Pathfinder Landing Site. During the mission, the instrument returned 8,5 million individual measurements from the Surface of Mars".
(9 voti)
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SOU-SOL016-PIA00784.jpgPre-Dawn Clouds on Mars - Sol 16 (True Colors; credits: NASA/JPL)176 visiteCaption NASA:"Pink Stratus Clouds are coming from the North/East at about 15 miles per hour (6,7 meters/second) at an approximate height of 10 miles (about 16 Km) above the Surface. The clouds consist of water ice condensed on reddish dust particles suspended in the Atmosphere. Clouds on Mars are sometimes localized and can sometimes cover entire Regions, but have not yet been observed to cover the entire Planet. The image was taken by the Imager for Mars Pathfinder (IMP) on Sol 16 about forty minutes before Sunrise showing areas of the Eastern Martian Local Horizon".
(16 voti)
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SOU-SOL013-Sunset-NASA.gifSunset over Ares Vallis - Sol 13 (GIF-Movie - False Colors; credits: NASA)62 visiteCaption NASA:"Animation of the Martian Sunset.
This movie is made from 9 images of the twilight following Sunset over Ares Vallis. The images are enhanced in order to show the very subtle features in the haze, which are probably caused by layers that are slightly dustier than the surrounding air. The color is not the true color of the sunset - that is shown in other images.
At the beginning, the Sun is on the horizon just to the right of the frame, and it sinks during the next hour. At the time of the last image the sky is only 1% as bright as at the beginning, but the IMP can easily adapt to the darkness and return these pictures. Because there is so much dust extending high into the Martian Sky, the Sky stays bright for more than an hour after sunset".MareKromium
(6 voti)
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SOU-SOL033-Landscape-PIA01120.jpgMartian Landscape - Sol 33 (Enhanced True Colors; credits: NASA/JPL)183 visiteCaption NASA:"The Sojourner Rover deploys the Proton X-Ray Spectrometer" onto the rock named "Moe" within the "Rock Garden" in this 75- image, color-enhanced mosaic taken by the imager on the Lander. Image of the Rover in the "Rock Garden" was taken on a different day than the terrain image. The view is to the South/West, with the Carl Sagan Memorial Station in the foreground and South Twin Peak on the horizon about 1 km from the Lander".
[Image processed at Jet Propulsion Laboratory, Pasadena, CA]
(6 voti)
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SOU-SOL024-Sunset-PIA00920_modest~0.jpgSunset on Mars - Sol 24 (True Colors; credits: NASA/JPL)229 visiteCaption NASA:"This is a close-up of the Sunset on Sol 24 as seen by the Imager for Mars Pathfinder. The red sky in the background and the blue around the Sun are approximately as they would appear to the human eye. The color of the Sun itself is not correct - the Sun was overexposed in each of the 3 color images that were used to make this picture. The true color of the Sun itself may be near white or slightly bluish".
(28 voti)
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