Most of the observations we have from the surface of Mars are stills , so it is common to consider the Red Planet somehow suspend in time . But Mars is achanging worldand this is better prove by these incredible repetition observations from NASA ’s Mars Reconnaissance Orbiter ( MRO ) .
Using the High - Resolution Imaging Experiment orHiRise Cameraonboard the MRO , planetary scientists have tracked the apparent movement of sand dune across the surface of Mars . The design is to understand what the most significant factors are in their motion , and in finical , how much local and regional conditions touch them .
In a report print in the journalGeology , American research worker have seen that the high backbone flux are observed in the northerly polar region , helped along by wind produced by the retire ironical ice rink polar detonating machine . realm near impact basins , such as Hellas and Isidis Planitia , also know these significant stream of sand . The southern region above 45 degrees parallel of latitude south were less peregrine , which the researchers blame onseasonal Robert Frost and icetrapping the sand .
“ We quantified bottom - conformation moxie flux density across Mars , find that the expectant flux density are driven by boundary shape distinct from those on Earth , ” the investigator wrote in thepaper . “ The locations of Syrtis Major , Hellespontus Montes , and the compass north icy erg are all near prominent topographical boundaries ( e.g. , impact basins , the arctic cap ) , which also have strong thermal gradients that likely contribute to seasonal wind instrument and , in turn , mellow sand mobility . ”
These gifs show the question of the dunes in unbelievable detail .
