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Fichier:The Serpent Dust Devil on Mars PIA15116.jpg
Fichier d’origine (2 093 × 1 389 pixels, taille du fichier : 509 kio, type MIME : image/jpeg)
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English: A towering dust devil casts a serpentine shadow over the Martian surface in this image acquired by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. The devil is 800m in height and 30m wide.
Ελληνικά: Ένας ανεμοστρόβιλος σκόνης ρίχνει τη σκιά του στην περιοχή Amazonis Planitia του Άρη. Ο ανεμοστρόβιλος έχει ύψος περίπου 800 μέτρων και πλάτος 30 μέτρων. Εικόνα από την κάμερα High Resolution Imaging Science Experiment (HiRISE) του Mars Reconnaissance Orbiter της NASA.
Original captionA towering dust devil casts a serpentine shadow over the Martian surface in this image acquired by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. The scene is a late-spring afternoon in the Amazonis Planitia region of northern Mars. The view covers an area about four-tenths of a mile (644 meters) across. North is toward the top. The length of the dusty whirlwind's shadow indicates that the dust plume reaches more than half a mile (800 meters) in height. The plume is about 30 yards or meters in diameter. A westerly breeze partway up the height of the dust devil produced a delicate arc in the plume. The image was taken during the time of Martian year when the planet is farthest from the sun. Just as on Earth, winds on Mars are powered by solar heating. Exposure to the sun's rays declines during this season, yet even now, dust devils act relentlessly to clean the surface of freshly deposited dust, a little at a time. This view is one product from an observation made by HiRISE on Feb. 16, 2012, at 35.8 degrees north latitude, 207 degrees east longitude. Other image products from the same observation are at http://www.uahirise.org/ESP_026051_2160 . HiRISE is one of six instruments on NASA's Mars Reconnaissance Orbiter. The University of Arizona, Tucson, operates the orbiter's HiRISE camera, which was built by Ball Aerospace & Technologies Corp., Boulder, Colo. NASA's Jet Propulsion Laboratory, a division of the California Institute of Technology in Pasadena, manages the Mars Reconnaissance Orbiter Project for the NASA Science Mission Directorate, Washington. Lockheed Martin Space Systems, Denver, built the spacecraft. |
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| Source | http://www.jpl.nasa.gov/spaceimages/details.php?id=PIA15116 file | |||||
| Auteur | NASA/JPL-Caltech/Univ. of Arizona | |||||
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Cette image ou vidéo a été cataloguée par le Jet Propulsion Lab de la National Aeronautics and Space Administration (NASA) des États-Unis sous Photo ID : PIA15116.Ce bandeau n’indique rien sur le statut de l’œuvre au regard du droit d'auteur. Un bandeau de droit d’auteur est requis. Voir Commons:À propos des licences pour plus d’informations. Autres langues :
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| Date et heure | Vignette | Dimensions | Utilisateur | Commentaire | |
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| Actuel | 14 avril 2012 à 04:41 | | 2 093 × 1 389 (509 kio) | wikimediacommons>Badseed | {{Information |Description={{en|A towering dust devil casts a serpentine shadow over the Martian surface in this image acquired by the High Resolution Imaging Science Experiment (HiRISE) camera on NASA's Mars Reconnaissance Orbiter. The devil is 800m i... |
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