<prompt> Fingqa isihloko: CNN Ososayensi be-NASA basondele kakhulu ekuqondeni ukuthi amanzi amaningi kangakanani ayengaba khona eMars yasendulo. Lokhu okutholakele okusha kubonisa nokuthi amadamu okuqala amanzi lapho kungenzeka ukuthi athuthuka kanjani eminyakeni eyizigidigidi, okukhombisa ukuthi izilwandle zakuqala kwiPlanethi Ebomvu kungenzeka ukuthi zazinamanzi amaningi kunolwandle lwase-Arctic eMhlabeni, ososayensi be-NASA badalula ocwaningweni olushicilelwe ngoLwesihlanu kumagazini i-Science. UGeronimo Villanueva, usosayensi we-NASAs Goddard Space Flight Center, wathi: Ucwaningo lwethu lunikeza isilinganiso esiqinile sokuthi amanzi ayeke aba maningi kangakanani eMars, ngokubona ukuthi amanzi ayelahleke kangakanani emkhathini. Ngalolu cwaningo, singawuqonda kangcono umlando wamanzi eMars. Ukuze bathole izimpendulo zalo mbuzo wasendulo ngamangqamuzana amanzi aseMars, ososayensi basebenzisa izibonakude ezintathu ezinkulu ze-infrared emhlabeni, eChile naseHawaii, ukuze balinganise amanzi asemkhathini wale planethi ezindaweni ezihlukahlukene nangezikhathi zonyaka, kusukela ngo-March 2008 kuya ku-January 2014. UMichael Mumma waseGoddard wathi: Uma sisemhlabathini, singathatha isithombe saso sonke isigamu sezwe ngobusuku obubodwa. Ososayensi babheka isilinganiso sezinhlobo ezimbili ezihlukene - noma ama-isotope - amanzi, i-H2O ne-HDO. Lesi sakamuva senziwa sibe nesisindo ngokwengeziwe ngelinye lama-athomu alo e-hydrogen, elibizwa ngokuthi i-deuterium, eline-neutron emnyombweni walo ngaphezu kwe-proton enawo wonke ama-athomu e-hydrogen. Lokho kwacindezela i-HDO kakhulu, kuyilapho inani elikhulu le-hydrogen elivela ku-H2O linyukela emkhathini, lahlukana namandla adonsela phansi aphansi kaMars futhi lanyamalala emkhathini. Ngenxa yalokho, ososayensi bathi, amanzi aboshelwe emaqhwa asezindaweni ezibandayo zaseMars anamazinga aphakeme kakhulu e-HDO kunamanzi asemhlabeni. Ososayensi baqhathanisa isilinganiso se-H2O ne-HDO emkhathini we-Mars namuhla nesilinganiso salawo ma-molecule amabili abambeke ngaphakathi kwe-meteorite yase-Mars, itshe elaqhekeka eMars - mhlawumbe lapho kugadla i-asteroid - lawela eMhlabeni eminyakeni engaba yizigidi eziyizinkulungwane ezingu-4,5 edlule. Bakwazi ukuthola ukuthi leso silinganiso sishintshe kangakanani ngokuhamba kwesikhathi futhi balinganisela ukuthi amanzi anyamalale kangakanani eMars - cishe angu-87. Okutholakele kubonisa ukuthi...  <response>: Ososayensi bafunda ngamanzi asemkhathini weMars ngezimboni ezintathu ezinkulu ze - infrared telescope. Baqhathanisa isilinganiso sama-molecule athile asemhlabeni nesiphepho saseMars esawela eMhlabeni. 