Amaqiniso amaningi athakazelisayo ngohlelo lwonozungezilanga ayaziwa, kanti amanye asaziwa. Ngenxa yesayensi yezinkanyezi, siyazi ukuthi luyini uhlelo lwonozungezilanga. Akuwona wonke umuntu owazi amaqiniso athakazelisayo ngalokhu. Ulwazi lwezinkanyezi luyamangalisa futhi luyamangaza, ngaphezu kwalokho, ngeke ulahleke ngalo.
1. I-Jupiter ibhekwa njengeplanethi enkulu kunazo zonke ohlelweni lwelanga.
2. Kunamaplanethi amancanyana ama-5 ohlelweni lwonozungezilanga, elinye lawo laqeqeshwa kabusha ePluto.
3. Kunama-asteroid ambalwa kakhulu ohlelweni lwelanga.
4. IVenus yiplanethi eshisa kakhulu ohlelweni lwelanga.
5. Cishe ama-99% wesikhala (ngevolumu) kusistimu yelanga kuhlala ilanga.
6. Enye yezindawo ezinhle kakhulu futhi zoqobo ohlelweni lwelanga yinyanga yeSaturn. Lapho ungabona ukugxila okukhulu kwe-ethane ne-liquid methane.
7. Isimiso sethu sonozungezilanga sinomsila ocishe ufane namaqabunga amane.
8. Ilanga lilandela umjikelezo weminyaka eli-11 oqhubekayo.
9. Kunamaplanethi ayi-8 ohlelweni lwonozungezilanga.
10. Isimiso sonozungezilanga sakhiwe ngokuphelele ngenxa yefu elikhulu legesi nothuli.
11. Umkhumbi-mkhathi wandizela kuwo wonke amaplanethi wesimiso sonozungezilanga.
12. I-Venus ukuphela kweplanethi kuhlelo lwelanga elizungeza ngokwewashi nxazonke ze-eksisi yayo.
13. I-Uranus ineziphuphutheki ezingama-27.
14. Intaba enkulu kunazo zonke iseMars.
15. Ubuningi bezinto ezisohlelweni lwelanga bawela elangeni.
16. Isimiso sonozungezilanga siyingxenye yomthala iMilky Way.
Ilanga liyinto esemaphakathi yesimiso sonozungezilanga.
18. Imvamisa uhlelo lwelanga luhlukaniswa ngezifunda.
19. Ilanga liyingxenye esemqoka yesimiso sonozungezilanga.
20. Isimiso sonozungezilanga sakhiwa cishe eminyakeni eyizigidigidi ezi-4,5 edlule.
21. Iplanethi ekude kakhulu kusimiso sonozungezilanga yiPluto.
22. Izifunda ezimbili ohlelweni lwelanga zigcwele imizimba emincane.
23. Isimiso sonozungezilanga sakhiwe ngokuphikisana nayo yonke imithetho yendawo yonke.
24. Uma siqhathanisa uhlelo lwonozungezilanga nendawo, khona-ke kumane nje kuyizinhlamvu zesihlabathi ezikuwo.
25. Eminyakeni engamakhulu ambalwa edlule, isistimu elanga ilahlekelwe amaplanethi ama-2: iVulcan nePluto.
26. Abaphenyi bathi uhlelo lwonozungezilanga lwadalwa ngokwenziwe.
27. Ukuphela kwesathelayithi yesimiso sonozungezilanga, esinomoya ominyene futhi ingaphezulu laso elingabonakali ngenxa yesembozo sefu, yiTitan.
28. Isifunda sesimiso sonozungezilanga, esitholakala ngale komjikelezo weNeptune, sibizwa ngebhande leKuiper.
29. Ifu i-Oort yisifunda sesimiso sonozungezilanga esingumthombo wezinkanyezi ezinomsila kanye nenkathi ende ezungezayo.
30. Yonke into ekuhlelo lwelanga ibanjwa lapho ngamandla adonsela phansi.
31. Umbono oholayo wesimiso sonozungezilanga uphakamisa ukuvela kwamaplanethi neziphuphutheki ezivela efwini elikhulu.
32. Isimiso sonozungezilanga sibhekwa njengesakhi esiyimfihlo kunazo zonke endaweni yonke.
33. Isimiso sonozungezilanga sinebhande elikhulu elisemkhathini.
34. KuMars, ungabona ukuqhuma kwentaba-mlilo enkulu kunazo zonke ohlelweni lwonozungezilanga, olubizwa nge-Olympus.
35. IPluto ibhekwa njengasemaphethelweni wesimiso sonozungezilanga.
Enyangeni yaseJupiter, e-Europa, kukhona ulwandle lomhlaba wonke lapho, mhlawumbe, kunokuphila.Okuqukethwe komoya-mpilo emanzini e-Europa kuvumela ukuxhasa hhayi kuphela izinhlobo zokuphila ezinengqamu eyodwa, kodwa futhi nezinkulu.
37. I-satellite enkulu kunazo zonke zesistimu yelanga - iGanymede, ezungeza iplanethi iJupiter. Ububanzi - 5286 km. Ungaphezu kweMercury.
38. I-asteroid enkulu kunazo zonke ohlelweni lwelanga yiPallas.
39. Iplanethi ekhanya kakhulu ohlelweni lwelanga yiVenus.
40. Isimiso sonozungezilanga sakhiwa kakhulu i-hydrogen.
41. Umhlaba uyilungu elilinganayo lesimiso sonozungezilanga.
42. Ilanga lishisa kancane.
43. Ngokumangazayo, izinqolobane ezinkulu zamanzi kuhlelo lwelanga ziselangeni.
44. Indiza ye-equator yeplanethi ngayinye yesimiso sonozungezilanga iyahlukana nendiza ye-orbit.
45. Isathelayithi iMars ebizwa ngePhobos iyi-anomaly yohlelo lwelanga.
46. Isimiso sonozungezilanga singamangala ngokwahluka kwaso esikalini.
47. Amaplanethi wesimiso sonozungezilanga athonywa yilanga.
48. Igobolondo elingaphandle lesimiso sonozungezilanga lithathwa njengekhaya leziphuphutheki nemidondoshiya yegesi.
49. Inani elikhulu lamasathelayithi asemaplanethi wesimiso sonozungezilanga lifile.
50. Ngo-1802 i-asteroid enkulu kunazo zonke, enobubanzi obungu-950 km, kwakuyiCeres. Kodwa ngo-Agasti 24, 2006, i-International Astronomical Union yakwamukela njengeplanethi encane.
