Ragga adag ee cirifka bannaan

Sida laga soo xigtay cilmi-baaris ay sameeyeen khubarada microbiologists ee Jaamacadda Maraykanka ee Maryland, iyo kuwo kale, stratosphere waa hoyga xagjirka ah ee u adkeysan kara qabow ba'an iyo bamka ultraviolet waana xudduudda ugu fog ee nolosha dhulka. Saynis yahanadu waxay rabaan inay horumariyaan "Atlas of Stratospheric Microbes" kaas oo katagi doona microbes ee ku nool meelaha sare.

Daraasado lagu sameeyay nooleyaal ku jira lakabyada sare ee hawada ayaa la sameeyay ilaa 30-meeyadii. Mid ka mid ah hormoodkooda ayaa caan ahaa Charles Lindberghkaasoo, iyada iyo xaaskiisa, ay falanqeeyeen shaybaarrada jawiga. Kooxdooda ayaa laga helay iyaga, iyo kuwo kale, xabka fangaska iyo miraha manka.

Sannadihii 70-aadkii, cilmi-baaris bayooloji ah oo hor-u-dhac ah ayaa lagu sameeyay stratosphere, gaar ahaan Yurub iyo Midowgii Soofiyeeti. Bayoloji jawiga hawada ayaa hadda la daraaseeyaa, oo ay ku jiraan iyada oo loo marayo mashruuc NASA ah oo la yiraahdo Kor ku xusan (). Sida saynis yahanadu xuseen, xaaladaha ba'an ee stratosphere ee dhulku waxay la mid yihiin kuwa jawiga Martian, sidaas darteed daraasadda nolosha stratospheric waxay kaa caawin kartaa aqoonsiga "shisheeyaha" kala duwan ee ka baxsan meeraheena.

-- wuxuu ku sheegay wareysi uu siiyay "Majaladda Astrobiology" Shiladitya DasSarma, microbiology-ga Jaamacadda Maryland. -.

Nasiib darro, ma jiraan barnaamijyo cilmi-baaris oo badan oo u go'ay noolaha noolaha ee jawiga ku jira. Waxaa jira dhibaatooyin arrintan la xiriira, sababtoo ah fiirsashada microorganisms per mugga unug aad ayuu u hooseeyaa halkaas. Deegaan qallafsan, qalalan, qabow, xaaladaha hawo aad dhif u ah iyo shucaaca ultraviolet, microbes waa in ay horumariyaan xeelado badbaado oo lagu garto extremophiles. Bakteeriyada iyo fungigu inta badan waxay ku dhintaan halkaas, laakiin qaarkood waxay ku noolaadaan iyaga oo abuura xadhkaha difaacaya walxaha hiddaha.

- - DasSarma ayaa sharraxaysa. -

Wakaaladaha hawada sare, oo ay ku jirto NASA, ayaa wakhtigan ka taxadaraya in aanay caalamka kale u soo bandhigin microfauna barriga, sidaa awgeed taxaddar ayaa la sameeyaa ka hor inta aan waxna la gelin wareega. Inta badan, microbes uma badna inay ka badbaadaan duqeynta fallaadhaha cosmic. Laakiin noolaha stratospheric ayaa muujinaya in qaar ay samayn karaan. Dabcan, waa muhiim in la xasuusto in badbaadadu aysan la mid ahayn sida noloshu u kobcayso. Sababtoo ah nooluhu wuxuu ku nool yahay jawiga iyo, tusaale ahaan, inuu gaaro Mars, macnaheedu maaha inuu ku korayo oo ku tarmo halkaas.

Tani ma runbaa - su'aashan waxaa looga jawaabi karaa daraasado faahfaahsan oo ku saabsan noolaha stratospheric.