Thursday, March 8, 2012

Badai Debu berbentuk Ular Raksasa di Mars

Debu berbentuk Ular Raksasa di Planet Mars
Nasa mendapatkan sebuah momen istimewa, ular raksasa namun dari debu di planet mars. Nasa menyebutnya sebagai 'The Serpent Dust Devil of Mars'. Mungkin ini semacam badai debu menyerupai ular raksasa, yang didapat dari kamera beresolusi sangat tinggi yang bernama High Resolution Imaging Science Experiment (HiRISE).
The Serpent Dust Devil of Mars

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 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 .

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.

Untuk foto dan gambar yang lebih banyak silahkan menuju ke halaman NASA 
Image credit: NASA/JPL-Caltech/Univ. of Arizona
Judul: Badai Debu berbentuk Ular Raksasa di Mars ; Ditulis oleh Bolo Srewu ; Rating Blog: 4.5 dari 5

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