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Nolosha Caalamka Ka Baxsan Dhulka Oo Ka Jiri Karta Meelo Yaab Leh, Daraasad Cusub Oo Lagu Ogaaday
Yeruusaalem, 22 Janaayo, 2026 (TPS-IL) — Nolosha ka baxsan dhulka ayaa laga yaabaa inay ka jirto meelo aad uga yaab badan sidii saynisyahanadu hore u maleeyeen, sida ay soo jeedinayso daraasad cusub. Dunida horey loo diiday inay aad u kulul yihiin, aad u qabow yihiin, ama mugdi joogto ah lahaayeen ayaa weli laga yaabaa inay ku jiraan biyo dareere ah—taasoo ah maaddo muhiim u ah nolosha.
Tobannaan sano, astronomiyada ayaa raadinaysay meerayaal ku jira "aagga la deggan yahay," oo ah siddo cidhiidhi ah oo ku wareegsan xiddig halkaas oo heerkulka u oggolaanayo biyaha inay ahaadaan kuwo dareere ah. Gudaaha nidaamka qorraxda, aagga la deggan yahay wuxuu gaaraa qiyaastii orbitaalka Dhulka ilaa kan Mars. Si kastaba ha ahaatee, meerayaasha exoplanet-ka badan ee hadda la helayo ma ku habboonaanayaan qaab-dhismeedkan. Qaarkood waxay ku wareegaan xiddigo aad uga duwan qorraxda, halka kuwa kale ay ka fog yihiin ama ka dhow yihiin xiddigtooda marka loo eego aagga la deggan yahay ee caadiga ah.
Daraasad cusub oo uu sameeyay Prof. Amri Wandel, oo ah astrophysicist ka tirsan Jaamacadda Cibraaniga, ayaa su'aal gelinaysa mala-awaalka ka dambeeya qeexidda caadiga ah. Daraasadda, oo lagu daabacay majaladda cilmi-baarista ee la qiimeeyay ee The Astrophysical Journal, waxay diiradda saareysaa meerayaasha la xidhay—dunida mar walba wejiga isku mid ah u jeedinaysa xiddigtooda. Hal dhinac wuxuu la kulmaa qorrax joogto ah, halka kan kale uu ku jiro habeen weligeed ah. Illaa hadda, waxaa la moodayay in dhinaca mugdiga ah uu qabow yahay, taasoo ka dhigaysa mid aan u badneyn inay taageerto biyaha ama nolosha.
Falanqaynta Wandel ayaa soo jeedinaysa wax ka duwan. Iyadoo la isticmaalayo moodel la socda heerkulka meeraha la xidhay, daraasadda ayaa ogaatay in kulaylka ka yimaada dhinaca maalinta uu u gudbi karo dhinaca habeenka, isagoo ilaalinaya qaar ka mid ah gobollada ku filan oo diirran si ay biyo dareere ah u yeeshaan. Tani waxay ku dhici kartaa xitaa meerayaasha ku wareegaya xiddigo qabow oo aad u dhow, sida M- iyo K-dwarfs, kuwaas oo horey loogu maleeyay inay aad u kulul yihiin biyo dusha ah. "Natiijooyinkayagu waxay muujinayaan in biyo dareere ah ay ka jiri karaan dhinaca mugdiga ah ee meerayaasha la xidhay," ayuu yiri Wandel. "Tani waxay ballaarineysaa deegaannada ay ku jiri karaan xaalado u wanaagsan nolosha, oo aad uga fog waxa ay saadaalisay aagga caadiga ah ee la deggan yahay."
Daraasadda ayaa sidoo kale ballaarineysa aagga la deggan yahay dhinaca fog. Meerayaasha aad uga fog xiddigtooda, kuwaas oo horey loo moodayay inay aad u qabow yihiin, biyo dareere ah ayaa ku sii jiri kara hoosta baraf qaro weyn oo ku jira harooyin hoose ama gudaha barafka. "Meerayaasha u muuqda kuwo barafaysan dusha sare ayaa laga yaabaa inay ku qarsadaan biyo dareere ah hoostooda," ayuu Wandel sharraxay. "Keydadkan qarsoon ayaa noqon kara meelo u suurta gal ah nolosha, taasoo si weyn u kordhineysa tirada adduunyada mudan in la baaro."
Soo-saarista ayaa sidoo kale caawineysa in la fahmo indha-indheyntii ugu dambeysay ee ka timid James Webb Space Telescope, kaasoo ogaaday uumiga biyaha iyo gaasaska kale ee jawiga meerayaasha Super-Earth ee kulul, oo aad ugu dhow xiddigaha M-dwarf—meerayaal horey loo moodayay inay ka baxsan yihiin xadka badbaadada ee biyaha.
Adigoo ku xad-gudbaya sharciyadii hore ee meesha ay ku jiri karaan xaalado u wanaagsan nolosha, daraasadda Wandel waxay dib u habeynaysaa raadinta adduunyada la deggan yahay. "Caalamku wuxuu noqon karaa mid aad uga dabacsan nolosha sidii aan hore u maleeynaynay," ayuu yiri.
Meerayaasha horey loo moodayay inay aad u daran yihiin—aad u kulul, aad u qabow, ama la kulmaya mugdi joogto ah—hadda waxaa loo arki karaa inay yihiin musharaxiin rajo leh oo ku jira ugaarsiga nolosha ka baxsan nidaamka qorraxda. Iyadoo astronomiyada ay sii wadaan sahaminta adduunyada fog, natiijooyinku waxay soo jeedinayaan in jaantuska Caalamiga ah ee meelaha suurtogalka ah uu noqon karo mid aad uga weyn sidii hore loo rumaysan jiray.
Natiijooyinku waxay caawin karaan astronomiyada inay diiradda saaraan raadinta nolosha iyagoo aqoonsanaya meerayaasha horey loo diiday inay aad u kulul yihiin, aad u qabow yihiin, ama mugdi joogto ah lahaayeen. Iyadoo la hagaajinayo moodooyinka cimilada meerayaasha, daraasadda waxay bixisaa sawir cad oo ku saabsan sida kulaylka iyo biyaha ay u dhaqmi karaan meerayaashaas aan caadiga ahayn, iyadoo la hagaajinayo saadaasha meerayaasha ay taageeri karaan nolosha. Daraasadda ayaa sidoo kale laga yaabaa inay iftiin cusub u yeesho dhaqdhaqaaqyada cimilada ee daran ee Dhulka.
Mawduucyada La Xiriira
