Ka taƙaita labarin:  (CNN) Masana kimiyya a NASA sun yi kusa da fahimtar yawan ruwan da zai iya kasancewa a duniyar Mars. Wadannan sabbin binciken sun kuma nuna yadda maɓuɓɓugan ruwa na farko a can za su iya samo asali sama da biliyoyin shekaru, yana nuna cewa tekun farko a kan Red Planet na iya riƙe da ruwa fiye da Tekun Arctic na Duniya, masana kimiyya na NASA sun bayyana a cikin wani binciken da aka buga a ranar Juma'a a mujallar Kimiyya. Geronimo Villanueva, wani masanin kimiyya a cibiyar binciken sararin samaniya ta NASA, ya ce: "Binciken da muka yi ya nuna cewa akwai ruwa mai yawa a duniyar Mars a dā, ta wajen sanin yawan ruwan da ya ɓace a sararin samaniya". "Da wannan aikin, za mu iya fahimtar tarihin ruwa a duniyar Mars". Don samun amsoshi ga wannan tsohuwar tambaya game da kwayoyin ruwa na duniyar Mars, masana kimiyya sun yi amfani da manyan telescopes uku na duniya, a Chile da Hawaii, don auna alamun ruwa a cikin yanayin duniyar a cikin yankuna da yanayi daban-daban, daga Maris 2008 zuwa Janairu 2014. "Daga ƙasa, za mu iya ɗaukar hoton dukan duniya a cikin dare ɗaya", in ji Michael Mumma na Goddard. Masana kimiyya sun duba rabon nau'i biyu daban-daban - ko isotopes - na ruwa, H2O da HDO. Na biyun ya fi nauyi ne ta hanyar ɗaya daga cikin ƙwayoyin halittar hydrogen, da ake kira deuterium, wanda yake da neutron a zuciyarsa ban da proton da dukan ƙwayoyin halittar hydrogen suke da shi. Wannan ya nauyaya HDO da yawa, yayin da yawancin hydrogen daga H2O ya tashi cikin sararin samaniya, ya rabu da ƙananan nauyi na Mars kuma ya ɓace cikin sararin samaniya. Sakamakon haka, ruwan da ke cikin ruwan kankara na Mars yana da matakin HDO mafi girma fiye da ruwan ruwa a Duniya, in ji masana kimiyya. Masana kimiyya sun kwatanta rabo na H2O zuwa HDO a duniyar Mars a yau da rabo na kwayoyin biyu da aka kama a cikin meteorite na Mars, dutsen da ya rabu da Mars - watakila lokacin da wani asteroid ya buga - kuma ya sauka a duniya kimanin shekaru biliyan 4.5 da suka wuce. Sun iya tantance yadda wannan rabo ya sauya a tsawon lokaci da kuma kimanta yawan ruwan da ya ɓace daga duniyar Mars - kusan kashi 87%. Abubuwan da aka gano sun nuna...
Masana kimiyya sunyi nazarin ruwa a cikin duniyar Mars tare da manyan telescopes guda uku. Sun kwatanta rabo na wasu kwayoyin halitta a duniyar duniyar tare da meteorite na Mars wanda ya sauka a duniya.