UMary Allen
Intshayelelo: Ukufuna iPlanethi enezinja ezincwinayo
Indalo iphela yindawo enkulu nengaqondakaliyo, kwaye ukufuna ubomi obungaphandle komhlaba kudala kuyeyona nto iqhubayo ekuhloleni icosmos. Ngelixa izazinzulu ezininzi zijolise ekufuneni ubomi obukrelekrele, abanye banomdla wokufumana ezona ndlela zisisiseko zobomi ngaphaya koMhlaba. Enye inkalo enomdla yolu phando kukukwazi ukufumana iplanethi enezinja ezincwinayo.
Nangona oku kusenokubonakala kulusukelo olungaqhelekanga kwizazi ngeenkwenkwezi nezazi ngeenkwenkwezi, ubukho bomhlaba onjalo bebuya kuba neempembelelo ezinzulu ekuqondeni kwethu indalo iphela nokuba nokwenzeka kobomi obungaphaya kwesi sijikelezi-langa sethu. Eli nqaku liza kuphonononga izinto ezahlukeneyo ezibandakanyekayo kukhangelo lwehlabathi elinjalo, kubandakanywa ukukhangela ii-exoplanets ezinokuhlala kuzo, ukuzingela izilwanyana zasemzini kunye neempawu zazo, kunye neemeko zokusingqongileyo eziyimfuneko kuphuhliso lobomi.
Ukuphonononga ukubanakho koBomi obungaphaya koMhlaba
Ukukhangela ubomi obungaphaya koMhlaba kuye kwaba yingqwalasela ephambili yophando lwezenzululwazi amashumi eminyaka. Lo mnqweno uphenjelelwe kukufunyanwa kwee-exoplanets, iiplanethi ezingaphandle kwesixokelelwano sethu selanga, ezinokuthi zikwazi ukuxhasa ubomi. Izazinzulu zichonge amawaka eexoplanets, uninzi lwazo lubekwe "kwindawo enokuhlalwa kuyo" yenkwenkwezi yabo, apho iqondo lobushushu lilungile ukuxhasa amanzi alulwelo, isithako esibalulekileyo sobomi njengoko sisazi.
Nangona kunjalo, ukukhangela ubomi obungaphaya koMhlaba akuphelelanga nje ekufumaneni iiplanethi kwindawo ekunokuhlalwa kuyo. Izazinzulu zikwanomdla wokukhangela iimpawu zobomi kwamanye amazwe, njengobukho beegesi zasemoyeni ezinokuthi ziveliswe zizinto eziphilayo. Ukufunyanwa kwezo gesi, ezaziwa ngokuba ziisignatures zebhayoloji, kuya kuba sisalathisi esinamandla sobukho bobomi kwiplanethi ethile. Ukongeza, izazinzulu zikwanomdla kumathuba okufumana ubomi kwiimeko ezigqithisileyo, ezinje ngokunzulu ngaphantsi komhlaba okanye kwinyanga ejikeleza isigebenga segesi.