Umhlaba wethu uziva ukhethekile kancinci ngoMvulo, njengoko i-NASA's Kepler mission yabhengeza ukufunyanwa kweplanethi enobungakanani boMhlaba ejikeleza inkwenkwezi efana nelanga.



Ewe, enye.

Kodwa le orb intsha ifanelwe iwonga elikhethekileyo - kuba yiplanethi yokuqala ukuqinisekiswa ngokusemthethweni ukuba ikhona kwindawo ebizwa ngokuba yindawo yokuhlala. Bubukhulu obufanelekileyo. Ijikeleza kanye kumgama ofanelekileyo ukusuka kwenkwenkwezi yayo, nto leyo ephantse ifane nelanga lethu.





Oku kuthetha ukuba isijikelezi-langa, esibizwa ngokuba yi-Kepler-22b, yeyona nto ibhetele yokubheja ukuba ibe yindawo eneatmosfera engqindilili kunye nenkangeleko emanzi.

Ukufunyaniswa yinto ebalulekileyo kwindlela yokufumana iwele loMhlaba, utshilo uDouglas Hudgins, usosayensi weprogram ye-Kepler kwiKomkhulu leNASA eWashington, etyelela i-NASA Ames yaseMoffett Field kwiNkomfa yokuQala yeSayensi yeKepler yeentsuku ezintlanu.



Ukuba konke oku kuvakala kuyinto eqhelekileyo, kungenxa yokuba siya singcono kwaye singcono ekufumaneni izinto.

Kabini phambi kokuba izazi ngeenkwenkwezi zibhengeze iiplanethi ezinobungakanani boMhlaba kwiindawo ekunokuhlalwa kuzo, nangona ukuqinisekiswa okucacileyo kubonakalisa ukuba akukho lula.



Ithali yeeplanethi eziqinisekisiweyo kunye nabagqatswa zikhula yonke imihla. Unyaka nje kunye nesiqingatha kwi-mission yokuzingela iplanethi ye-Kepler, kukho iiplanethi eziqinisekisiweyo ze-28 kunye neeplanethi ze-2,326 zabaviwa - apho i-1,000 emangalisayo ifunyenwe ukususela ngoFebruwari.

Kwiiplanethi ezingama-54 zabaviwa kwindawo ekunokuhlalwa kuyo, apho amanzi angamanzi anokubakho, i-Kepler-22b yeyokuqala ukuqinisekiswa. Esi siganeko siza kupapashwa kwi-Astrophysical Journal.



Abaviwa abafana nomhlaba

Iiteleskopu ezinamandla zifumana ezinye izinto, nazo. Kwesinye isibhengezo esikhulu ngoMvulo, kusetyenziswa iiteleskopu kwi-Keck Observatory eseHawaii kunye neMcDonald Observatory eTexas, izazi ngeenkwenkwezi zase-UC Berkeley zabhengeza ukufunyanwa kweyona mingxuma mikhulu imnyama ukuza kuthi ga ngoku - izilo ezibini ezinobunzima obulingana ne-10 yezigidigidi zelanga ezikwaziyo kudla nantoni na, kwanokukhanya, kummandla owuphinda kahlanu ubukhulu besijikelezi-langa sethu.



Isiphekepheke se-Kepler esizizigidi ezingama-600 zeerandi sijonga kwiinkwenkwezi ezimalunga ne-150,000 kumakroza eCygnus naseLyra, sizama ukubhaqa naluphi na utshintsho ekubengezeni kwenkwenkwezi ebonisa isijikelezi-langa esidlulayo. Iidiphu ezintathu, okanye ukuncipha, kufuneka kubonwe ukuze kuqinisekiswe.

Iqela lesayensi ye-Kepler lisebenzisa iiteleskopu ezisemhlabeni kunye neSpitzer Space Telescope ukuphonononga uqwalaselo kubaviwa beplanethi abafunyanwa sisiphekepheke, siqinisekisa ukuchongwa kwabo.

Ukukhula okumangalisayo kwenani labaviwa abanobungakanani boMhlaba kusixelela ukuba sijonge kwiiplanethi iKepler yenzelwe ukufumanisa: ezo zingengobukhulu bomhlaba kuphela, kodwa ziyakwazi ukuhlalwa, utshilo uNatalie Batalha, usekela sayensi weKepler. iqela elikhokelayo kwiYunivesithi yaseSan Jose State.

Okukhona siqokelela iinkcukacha, kokukhona libukhali iliso lethu lokufumana ezona planethi zincinci kwixesha elide lokujikeleza, utshilo.

Isijikelezi-langa, esibizwa ngokuba yi-Kepler-22b, sinobubanzi obuphindwe ngama-2.4 kunoMhlaba.

Kodwa eyona nto iyiyo yesi sijikelezi-langa sitsha iseyimfihlelo. Akukho mntu waziyo ukuba inamatye, igaseous okanye inamanzi.

Ukuba inomphezulu, izazi ngeenkwenkwezi ziqikelela amaqondo obushushu kuluhlu olupholileyo lwe-70-degree - imozulu yeT-shirt.

Ukuze uqonde ngcono ukubunjwa kwe-Kepler 22-b, okokuqala kuyimfuneko ukulinganisa ubuninzi bayo kunye nobunzima - oko kukuthi, ubunzima. Iteleskopu yakwaKepler ayinakuyenza le nto, kodwa iKeck nezinye iiteleskopu ezisemhlabeni ziyakwazi. Izazinzulu zinethemba lokuzama kweli hlobo lizayo.

Kwaye okwangoku asinazo izixhobo zokubona iimpawu ezikude zemetabolism, kunye neempawu zebhayoloji ezifana ne-atmospheric oxygen okanye imethane.

Kodwa nayiphi na ingcamango yezidalwa zasemhlabeni ezihlala kwi-Kepler 22-b inomngeni omnye obaluleke kakhulu: umgama. Isiphekepheke, esiphuma namhlanje kwi-17,000 mph, siya kufikelela kwinkqubo yethu yeenkwenkwezi ekufutshane - i-Alpha Centauri, engaphezulu kancinane kwiminyaka emine yokukhanya - malunga ne-165,000 yeminyaka. Isijikelezi-langa esitsha sikuma-600 eminyaka yokukhanya-ukuze kwaloo nqanawa inye yayiza kufika apho kwiminyaka ezizigidi ezingama-23.

ISETHA iingoma

Kodwa i-Kepler-22b ibonakala inezinto ezininzi ezifanayo kunye noMhlaba. Inkwenkwezi yasekhaya, malunga neminyaka engama-600 yokukhanya, iphantse ibe liwele lelanga, utshilo uBatalha. Ke ukukhanya okubetha umphezulu weplanethi kuya kufana nombala ofanayo nokukhanya okukhanyisa uMhlaba.

Kwaye unyaka kaKepler-22b uphantse walingana nobude bomhlaba: iintsuku ezingama-290 endaweni yama-365.

Yinjongo ephambili ekujoliswe kuyo kuPhando loBukrelekrele obungaphaya komhlaba, olwenziwa ngesitya esizinikeleyo se-Allen Telescope Array eMntla California, utshilo uJill Tarter weMountain View's SETI Institute.

Ukhangelo lokuqala lweempawu zikanomathotholo kwi-Kepler-22b sele luqhuba, utshilo. Kukho iibhiliyoni zamajelo osasazo aza kuvavanywa.

Ukufumanisa zonke ezi planethi zintsha zivakala zinomtsalane - kodwa yintshayelelo yebali elikhulu kakhulu, ngokutsho kweSETI Institute's Seth Shostak, ekuphenduleni iindaba zangoMvulo.

Ukongezelela iziphumo kukhangelo, kukhuselekile ukuthetha ukuba uninzi lweenkwenkwezi zijikelezwe ziiplanethi, wabhala. Ngokwenene, olona qikelelo lungcono kukuba iiplanethi ezikumnyele wethu zimalunga netriliyoni.

Kusengqiqweni ukucinga, ngokukaShostak, ukuba i-Kepler-22b inabantakwethu abakwibhiliyoni kumnyele wethu: ibhiliyoni yezinye ihlabathi ezinjengoMhlaba zithungela amaphecana amakhulu eMilky Way.

Qhagamshelana noLisa M. Krieger kwi-408-920-5565.

Ufunyaniswe nguKepler

Isijikelezi-langa esi-1 esiqinisekisiweyo esikwindawo ekunokuhlalwa kuyo, apho amanzi anolwelo anokubakho
Iiplanethi ezingama-28 eziqinisekisiweyo
Iiplanethi ezingama-54 ezingaqinisekiswanga kwindawo ekunokuhlalwa kuyo
Ngama-2,326 iiplanethi ezingaqinisekiswanga. Kwezi, ezingama-207 zimalunga nobukhulu boMhlaba, ama-680 anobukhulu obuphezulu boMhlaba, i-1,181 ubukhulu beNeptune, ama-203 anobungakanani beJupiter kwaye ama-55 makhulu kunoJupiter.




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