Umlando kanye Nencazelo Yama-Quasar Ama-Quasar aphakathi kwezinto eziyimfihlakalo nezikhanya kakhulu endaweni yonke. Nakuba ubukhulu bawo obungokwenyama bungebukhulu kakhulu kunesimiso selanga, ama-quasar ayakwazi ukukhipha amandla adlula ukukhanya okuhlangene kwezinkanyezi ezingamakhulu ezigidigidi emthaleni. Lokhu kukhanya kuvela kude kakhulu, ngakho-ke lapho... Funda kabanzi
Izici Ezithinta Izimo Zemithala Imithala "imizi" emikhulu endaweni yonke, equkethe izinkanyezi eziyizigidigidi kuya kwezigidigidi, igesi, uthuli oluphakathi kwezinkanyezi, kanye ne-dark matter engabonakali kodwa enamandla ngokusebenzisa amandla adonsela phansi. Uma sibheka izithombe zemithala, sizobona ukuthi inezinhlobo ezahlukene zezimo: ezinye ziyizindilinga ezisontekile kahle (izindilinga), ezinye zibonakala ziyindilinga noma ziyindilinga ngaphandle kwesakhiwo sengalo... Funda kabanzi
Indlela Yokuqonda Umqondo Wamandla Adonsela Phansi Ku-Astronomy Amandla adonsela phansi angomunye wemibono eyisisekelo kakhulu ku-astronomy—empeleni, angabizwa ngokuthi “ulimi” oluchaza ukuthi kungani amaplanethi ejikeleza izinkanyezi, ukuthi kungani izinkanyezi zakha imithala, nokuthi kungani ukukhanya okuvela ezintweni ezikude kugoba. Nakuba kungase kuzwakale kuyinkimbinkimbi, amandla adonsela phansi angaqondwa ngezigaba: kuqala ngolwazi lwansuku zonke, uqhubekele emithethweni kaNewton, bese uthuthukela ekuhlobaneni… Funda kabanzi
Imibono Namamodeli Endawo Yonke Indawo yonke iyisamba sesikhala, isikhathi, izinto, namandla njengoba siwazi. Selokhu abantu baqala ukubheka esibhakabhakeni ebusuku, imibuzo mayelana nomsuka, ukuma, kanye nesiphetho sendawo yonke iye yavusa ilukuluku. Kwisayensi yanamuhla, ukuqonda indawo yonke kwakhiwe ngemibono namamodeli—imiqondo emibili ehlobene kodwa engahlangene. … Funda kabanzi
Indlela I-Astronomy Esiza Ngayo Ekuhloleni I-Astronomy ivame ukubonwa njengesayensi "efunda" izinkanyezi, amaplanethi, kanye nemithala kude. Kodwa-ke, indima yayo iyabonakala kakhulu futhi iqondile: i-astronomy inikeza isisekelo sesayensi esisiza abantu ukuklama imisebenzi yasemkhathini, bazulazule emkhathini endaweni engenamuntu, bakhethe imigomo yokuhlola ethembisayo kakhulu, futhi baqonde ngisho nezingozi zemvelo yasemkhathini. Ngaphandle kwe-astronomy, … Funda kabanzi
Ayini Amagagasi Adonsela Phansi Nokutholakala Kwawo? Amagagasi adonsela phansi angenye yezinto ezitholakele ezimangalisa kakhulu kwifiziksi yanamuhla ngoba anika abantu "indlela entsha" yokubuka indawo yonke. Ngenkathi izinkanyezi bezithembele ekukhanyeni—kusukela ekukhanyeni okubonakalayo, umsakazo, i-infrared, kuya kuma-X-ray—amagagasi adonsela phansi asivumela ukuzwa "ukudlidliza" kwesikhala nesikhathi ngokwaso. Lesi simo asigcini nje... Funda kabanzi
Okushiwo yi-Optical Astronomy I-optical astronomy igatsha le-astronomy elifunda izinto zasezulwini ngokusebenzisa ukukhanya okusebangeni lamaza angabanjwa yiso lomuntu, okungukuthi i-spectrum yokukhanya ebonakalayo, futhi ngokuvamile kufaka phakathi izindawo eziseduze njenge-near-UV kanye ne-near-IR ezingasatholakala ngezinsimbi zokukhanya... Funda kabanzi
Ukuchazwa Kwamaplanethi Amakhulu Kagesi Amaplanethi amakhulu kagesi angenye yamaqembu amaplanethi athakazelisa kakhulu ohlelweni lwelanga nangale kwawo. Akhulu kakhulu, agcwele igesi, futhi anezimo ezijiyile ezinesimo sezulu esibi kakhulu. Esimisweni selanga, amaplanethi amakhulu kagesi aziwa kakhulu yiJupiter neSaturn, kanti… Funda kabanzi
Indlela Yokuqonda Umdwebo We-Hertzsprung-Russell Umdwebo we-Hertzsprung-Russell (ovame ukufushaniswa njengomdwebo we-H-R) ungomunye "wamamephu" abaluleke kakhulu kusayensi yezinkanyezi yokuqonda izimpilo zezinkanyezi. Ngokubheka indawo yenkanyezi kumdwebo, singaphetha ngokushisa kwayo kobuso, ukukhanya, usayizi ohlobene, ngisho nokuthi yisiphi isigaba sokuziphendukela kwemvelo okuso njengamanje. Kodwa-ke, kwabaqalayo, umdwebo we-H-R ungadida ngoba uhlanganisa eziningana... Funda kabanzi
Umbono Wokwakheka Kwe-Elliptical Galaxy Imithala ye-elliptical ingenye yezinhlobo eziyinhloko zemithala endaweni yonke, kanye nemithala ye-spiral ne-irregular. Ivame ukuba yindilinga kuya kwe-oval ngesimo, inephethini yokukhanya ebushelelezi, esakazeke ngokulinganayo ngaphandle kwephethini ehlukile yengalo ye-spiral. Uma iqhathaniswa nemithala ye-spiral, imithala ye-elliptical ngokuvamile iqukethe igesi nothuli oluncane, … Funda kabanzi