Masayendisiti funga kuti radar masaiti anoratidza kuvepo kwenzvimbo dzepasi pevhu dzakadzika pasi pechiso, inogona kunge ichibuda muvhu, kwete mvura.
Kutsvaga kwehupenyu paRed Planet
Kutsvaga kwehupenyu hunopfuura kutenderera kwePasi kwave kumwe kweakanyanya kuvharirwa nevazivi venyeredzi neMars inofungidzirwa kuti ndiyo nzvimbo yepamusoro yekuwanikwa kwakadai. Hupenyu hunobudirira muhupo hwemvura uye ongororo dzichangobva kuitika dzakapa kufarira kwepasirese nekuratidza kuvepo kwenzvimbo dzepasi pemvura paRed Planet.
Zvino, mamwe masayendisiti anofunga kuti radar inoratidza kuti huvepo hwemvura mumadhamu aya ari pasi penzvimbo inogona kunge ichibuda muvhu, kwete mvura. Mapepa matatu akaburitswa mukufamba kwemwedzi wapfuura akapa maonero matsva muzviratidzo zvakavanzika, achiomesa makungwa fungidziro.
Muna 2018, timu inotungamirwa naRoberto Orosei wekuIstituto Nazionale di Astrofisica yeItaly yakazivisa humbowo hunoratidza kuvapo kwemadziva epasi pevhu pasi pechando cap kuMars 'pole pole. Chikwata ichi chakange chadzidza data kubva kuchiridzwa cheredar chakapinda muEuropean Space Agency (ESA) Mars Express orbiter iyo yairatidza maseru akajeka pazasi pechavha chepolar. Aya masaini aigona kududzirwa semvura yemvura, vesaenzi vaive vataura.
Iyo orbiter yakashandisa masaisai eradar kupinda mukati medombo nechando, izvo zvakashanduka sezvavanoratidzwa pazvinhu zvakasiyana. Nekudaro, vaongorori mushure mekuitisa bvunzo murabhoritari inotonhora vava kuratidza kuti zviratidzo zvainge zvisiri zvemvura.
Yakanyanya kutonhora yemakungwa
Vanoongorora zvino vanoti mazhinji emadhamu aya anogona kunge ari munzvimbo dzinotonhora kuti mvura igare iri mumvura. Aditya R Khuller naJeffrey J Plaut vanobva kuNasa's Jet Propulsion Laboratory (JPL) vakaongorora 44,000 radar maEcece kubva pasi peganda repolar mumakore gumi nemashanu ekucherechedza. Vakawana akawanda emasaini aya munzvimbo dziri padyo nepamusoro, panofanirwa kunge kuchitonhora kuti mvura igare iri muchimiro chemvura.
Zvikwata zviviri zvakasiyana zvakaramba zvichiongorora iyo data kuti vaone kana paine chero chimwe chinhu chingave chichigadzira iwo maseru. Ipo Carver Bierson weASU achinge apedza ongororo yedzidziso achikurudzira zvinhu zvinoverengeka zvinogona kukonzeresa masaini, kusanganisira ivhu, yeYunivhesiti yeYork Isaac Smith akayera zvimiro zvema smectites, boka revhu riripo muMars yose.
Ivhu, kwete mvura
Smith akaisa akati wandei smectite samples, ayo anotaridzika kunge akajairika matombo asi akaumbwa nemvura yemvura kare kare, musirinda yakagadzirirwa kuyera mashandiro eredhiyo aigona kusangana navo. Iye akabva avadira mvura ine nitrogen, achivagwamba nechando kusvika pamadhigirii makumi mashanu emaCelsius, padhuze netembiricha inoonekwa kuMartian south pole. Pane imwe nguva yakaomeswa nechando, iwo matombo masampuli akanyatsoenderana nechero radar yakaitwa neESA Mars Mars orbiter.
Chikwata chakazotsvaga kuvepo kwevhu rakadai paMaris richishandisa MRO, iyo inotakura chigayo chemaminera chinonzi Compact Reconnaissance Imaging Spectrometer. Vakawana ma smectite akapararira munharaunda yesouth pole yechando chivharo. "Chikwata chaSmith chakaratidza kuti chando chakaomeswa chichivhuvhuta chinogona kuita kuti kuratidzike kuve pasina huwandu hwemunyu kana kupisa hunodiwa uye kuti varipo kumaodzanyemba pole," akadaro JPL.
Kwete yekutanga kutaura kwakadai
Suburface lake hypothesis haisi yekutanga kuve nekuunganidza maziso ezvepasi rose, muna 2015 NASA Mars Reconnaissance Orbiter yakawana chaitaridzika kunge mitsara yejecha nyorova richidzika nemateru, chiitiko chinonzi "inodzokororwa mutsetse mutsara." Vatsvagiridzi vaive vaona masiginecha emaminerari ane hydrated pamatope apo pakaonekwa mitsara isinganzwisisike paRed Planet. Iyi mitsetse ine rima yakaratidzika kudzikira uye kuyerera nekufamba kwenguva.
Nekudaro, kudzokororwa kwekucherechedzwa, vachishandisa iyo spacecraft's High-Resolution Imaging Sayenzi Kuedza (HiRISE) kamera, yakaratidza granular kuyerera, uko tsanga dzejecha neguruva zvinotsvedza zvichidzika kudzika kuita rima mitsara, pane kuti ivhu rive nerima nekusvina mvura. Chiitiko ichi chaivapo chete pamateru akadzika zvakakwana kuti zviyo zvakaomeswa zvidzike nenzira yavanoita pazviso zvemadhamu anoshanda.
Kunyangwe zvisingaite kuti ubudise pachena kuti ndeapi masaradhi akajeka asiri kumhara kuMars 'zasi pole, zvidzidzo zvenguva pfupi zvapa tsananguro dzinobatika dzinonzwisisika kupfuura mvura yemvura.
