Eminyakeni eminingi ezayo ilanga lizoshintsha
Inkanyezi iyibhola legesi elishisayo, elikhazimulayo. Lapho ubheka phezulu esibhakabhakeni ebusuku, ungabona inqwaba yezinkanyezi ezibenyezelayo. Ingabe uyazibona izinkanyezi emini? Kunjalo! Ukukhanya kwasemini kuvela enkanyezini yethu eseduze kakhulu: iLanga.
ILanga liseduze kangakanani noMhlaba? Indlela, iseduze kakhulu kunezinye izinkanyezi, kodwa kusekude kakhulu. Iqhele ngamamayela ayizigidi ezingama-93 ukusuka eMhlabeni. Lokho kude izikhathi ezingama-400 kunebanga phakathi koMhlaba neNyanga!
Nokho, kuyinto enhle ukuthi uMhlaba awusondeli kakhulu eLangeni. Ukube besisondelene kakhulu, bekungaba kushisa kakhulu ukuhlala lapha. Ubuso beLanga kushisa kakhulu, futhi umkhathi walo ushisa nakakhulu. Futhi umnyombo weLanga uyingxenye eshisa kakhulu kunawo wonke, ezingeni elimangalisayo lika-27 million degrees Fahrenheit!
ILanga lethu libanzi ngokuphindwe izikhathi eziyi-100 kunoMhlaba, kodwa liyinkanyezi nje elingana nosayizi. Izazi zezinkanyezi zithole ezinye izinkanyezi ezinkulu ngokuphindwe kayikhulu kuneLanga kanti ezinye ezincane ngokuphindwe ka-10.
ILanga nalo limaphakathi nomjikelezo walo wokuphila. Njengamanje, iLanga lethu lisesiteji esibizwa ngokuthi i-yellow dwarf. Ineminyaka engaba yizigidi eziyizinkulungwane ezingu-4.5 ubudala. Kweminye iminyaka eyizigidi eziyizinkulungwane ezinhlanu iLanga lizoba inkanyezi enkulu, epholile ebizwa ngokuthi umdondoshiya obomvu. Eminyakeni eyizigidi eziyizinkulungwane ezimbalwa ngemva kwalokho, izoba inkanyezi encane emhlophe. Izoncipha ilingane noMhlaba, kodwa izoba nesisindo esiphindwe izikhathi ezingu-20,000 ngaphezulu.
Kodwa nakuba iLanga lethu liwuhlobo lwenkanyezi evamile, kunezinto ezimbalwa ezenza iLanga lethu likhetheke kakhulu. Ngokwesibonelo…
Asikwazi ukuphila ngaphandle kweLanga!
Ukuphila Emhlabeni kuncike eLangeni. Nazi izizathu ezimbalwa zokuthi kungani:
Amandla adonsela phansi eLanga abamba sonke isimiso sethu sonozungezilanga ndawonye. Isimiso sethu sonozungezilanga size siqanjwe nangeLanga (igama lesiLatini elisho iLanga elithi “sol”).
Ukushisa okuvela eLangeni kwenza Umhlaba ufudumale ngokwanele ukuba uphile kuwo.
Ngaphandle kokukhanya okuvela eLangeni, bezingeke zibe khona izitshalo noma izilwane—ngakho-ke, ukudla bekungeke kube khona futhi besingeke sibe khona.
Ukushisa nokukhanya kungase kubaluleke empilweni yasemhlabeni, kodwa iLanga lithumela nezinye izinto. ILanga lithumela inqwaba yamandla nezinye izinhlayiya ezincane emhlabeni. Insimu evikelayo kazibuthe yomhlaba kanye nomkhathi kusivikela emandleni amaningi nezinhlayiyana. Kodwa ngezinye izikhathi umfudlana omkhulu walezi zinhlayiya ufika eMhlabeni futhi uthintane namagesi asemaphethelweni angaphandle omkhathi wethu. Lokhu kubangela imifudlana yokukhanya esibhakabhakeni, ebizwa ngokuthi ama-aurora.
Omakhelwane BeLanga
Esimisweni sethu sonozungezilanga, iplanethi eseduze neLanga yiMercury. Umakhelwane osondelene kakhulu weLanga lethu ubizwa ngo-Proxima Centauri. Cishe kuqhele nge-light-year engu-4.
Libukeka kanjani iLanga?
Okokuqala, akufanele neze ubheke ngqo eLangeni ngaphandle kwezingubo zamehlo ezivikelayo. Kodwa i-NASA inezithombe eziningi ezinhle zeLanga ongazibheka! Ososayensi basebenzisa izibonakude ezinezihlungi ukuze bathwebule izithombe zeLanga. Lezi zithombe zisisiza ukuthi sifunde ngenkanyezi yethu. Isithombe esingezansi sithathwe umkhumbi-mkhathi we-NASA obizwa ngokuthi i-Solar Dynamics Observatory.
Amanye amaqiniso ajabulisayo ngeLanga!
ILanga liya ehla linyuka lisebenza njengama-solar flare. Iqala ukusebenza kakhulu ngamachashazi elanga amaningi bese ingasebenzi isikhathi esiyiminyaka eyi-11. Lokhu kubizwa ngokuthi umjikelezo welanga.
ILanga belilokhu likhanya kancane selokhu lazalwa. Eminyakeni eyizigidi eziyizinkulungwane ezimbalwa edlule, iLanga lalifiphele kancane kunalokho eliyikho manje.
ILanga liqukethe cishe ZONKE izinto ezisesimisweni sethu sonozungezilanga. 99% yayo. Wonke amaplanethi, ama-asteroids kanye nenkanyezi enomsila anezela ngaphansi kwe-1% yengqikithi.
- ILanga likude kangangokuthi kuthatha imizuzu engu-8 nemizuzwana engu-20 ukuze lifike kithi – futhi ukukhanya kuyinto eshesha kakhulu endaweni yonke.
