Cha, izazi eziningi zezinkanyezi futhi zayazi ukuthi iMilky Way yayigobekile, cishe yonke imifanekiso, leli qiniso sehliswe ukuze kube lula noma kungekho idatha enembile. Kodwa-ke, ososayensi baseMelika abavela e-University of Virtuen of Virtual badala ukubona lokho okubonisa isimo sangempela sezinto. Ngokusho kwe-Phys.org Portal, lo msebenzi uyingxenye yocwaningo olukhulu "iSliaanvsky Digital Review" (SDS). Ukubona ngokubona kuqala kuboniswe ngohlaka lomhlangano wama-237 we-American Astronomical Society (AAS).
Ukuba khona kokugoba endizeni yemithala evunguzayo kutholakele isikhathi eside - ngasikhathi sinye nokubonwa okunemininingwane kwalezi zinto. Izimbangela eziqondile zamagagasi anjalo aziziwa ngokuthembekile. Imodeli ebukeka kahle kunazo zonke lapho bebangela khona umphumela wokudonsela phansi komunye umthala, owawuseduzane nebanga elifushane. Ukuxhumana okunjalo kudlula, imithala iyasuswa komunye nomunye noma ibe ama-satellite, futhi izinkanyezi ngaphakathi kuzo zihamba phezu kwe-trajectories eshintshiwe isikhathi eside. I-Milky Way yahlangabezana ne-perturbaritor enjalo yokuzola eminyakeni emithathu yezigidi eziyizinkulungwane ezedlule - muva nje kumazinga we-cosmological.
Ukubona ukugoba okunjalo emthaleni wakhe, ososayensi kwadingeka basebenze kahle. Kusetshenziswe amasethi emibili yedatha ngasikhathi sinye: Kusuka ku-Apogee Experiment Apochi-Point Observatory eNew Mexico (USA) nemiphumela ye-European Telescope Gaia. Ukubuka okuhlaba umxhwele kokugoba komthala akuyona nje ividiyo enhle. Lokhu kungumkhiqizo oqondile we-cartography enobukhulu obuthathu ye-Milky Way, umsebenzi oyinkimbinkimbi kakhulu ukuthola isikhundla esiqondile esikhaleni samakhulu ezinkulungwane zezinkanyezi.
Njengengxenye ye-apogee, isibonakude esinezibuko ezingama-2,5-met cishe cishe iminyaka eyishumi esifundweni seziqhwaga eziyizinkulungwane eziyikhulu ze-Milky Way. Lokhu kuvunyelwe hhayi kuphela ukunquma ukwakheka kwabo, kepha futhi ukusungula iminyaka yezinkanyezi, kanye nezinye izici zokunyakaza. Lapho-ke le mininingwane ihlanganiswe nemininingwane etholwe yi-GAIA Applatus. Ngibonga yena, futhi, izazi zezinkanyezi ziyazi ibanga eliqondile ukusuka emhlabathini kuya ezigidini zezinkanyezi. Ngenxa yokuqhathanisa, kungenzeka ukuthi kwakha imephu yendawo yesikhundla seLuminaire futhi ubone ukuthi bangabangabaza kanjani, njengokungathi kugagasi elikhulu.
Umthombo: Isayensi Enqunu