Olunye uhlangothi lwenyanga
Olunye uhlangothi lweNyanga lukhanyiswa yiLanga ngendlela efanayo naleyo okuthiwa yinkambo, kuphela awukwazi ukulibona useMhlabeni. Kusukela eplanethini yethu kungenzeka ukugcina ingqikithi (kodwa hhayi ngesikhathi esisodwa!) 59% ebusweni beNyanga, futhi ukwazi i-41% esele, eyingxenye okuthiwa yi-reverse side, kungenzeka kuphela ngokusebenzisa ama-probes emkhathini. Futhi awukwazi ukuyibona, ngoba isikhathi esisithathayo ukuze inyanga ijikeleze eksisini yayo sifana ncamashi nokujikeleza kwayo emhlabeni.
Uma iNyanga ibingazungezi eksisini yayo, khona-ke iphuzu K (iphuzu elithile elikhethwe yithi ebusweni beNyanga), elibonakala ekuqaleni phakathi nendawo yobuso, lizoba semaphethelweni eNyanga ngesonto. Phakathi naleso sikhathi, iNyanga, yenza ingxenye yesine yokuzungeza uMhlaba, ngesikhathi esifanayo izungeza ingxenye yesine ye-revolution ezungeze i-axis yayo, ngakho-ke iphuzu K lisemaphakathi nediski. Ngakho-ke, kunoma yikuphi ukuma kweNyanga, iphoyinti K liyoba phakathi nendawo yediski ngokunembile ngenxa yokuthi iNyanga, ezungeza uMhlaba nge-engeli ethile, izizungeza yona nge-engeli efanayo.
Ukunyakaza okubili, ukuzungeza kwenyanga nokuhamba kwayo emhlabeni, kuzimele ngokuphelele komunye nomunye futhi kunenkathi efanayo ncamashi. Ososayensi basikisela ukuthi lokhu kuqondana kwakungenxa yomthelela onamandla woMhlaba eNyangeni eminyakeni eyizigidigidi ezimbalwa. Amagagasi avimbela ukuzungeza komzimba ngamunye, ngakho aphinde anciphisa ukujikeleza kweNyanga kwaze kwaqondana nesikhathi sokuphenduka kwayo emhlabeni. Kulesi simo, igagasi lolwandle alisabalali endaweni yonke yenyanga, ngakho-ke ukungqubuzana okuvimbela ukujikeleza kwawo sekunyamalele. Ngendlela efanayo, kodwa ngezinga elincane kakhulu, amagagasi anciphisa ukujikeleza koMhlaba eksisi yawo, okwakufanele ukuthi esikhathini esidlule kwakushesha kakhulu kunalokho oyikho manje.
inyanga
Kodwa-ke, njengoba isisindo soMhlaba sikhulu kunobuningi beNyanga, izinga lokuzungeza komhlaba kwehla lahamba kancane kakhulu. Mhlawumbe, esikhathini esizayo esikude, ukuzungeza koMhlaba kuzoba yinde kakhulu futhi kuzobe kuseduze nesikhathi sokuguquguquka kweNyanga eMhlabeni. Nokho, ososayensi e-Massachusetts Institute of Technology bakholelwa ukuthi iNyanga ekuqaleni yahamba endaweni eyi-elliptical, kunokuba isiyingi, i-orbit ene-resonance elingana no-3: 2, i.e. kukho konke ukuphenduka okubili kwe-orbit, kwakukhona ukuzungeza okuthathu eksisi yayo.
Ngokwabacwaningi, lesi simo bekufanele sithathe iminyaka eyizigidi ezingamakhulu ambalwa kuphela ngaphambi kokuba amandla olwandle ehlise ukujikeleza kwenyanga ukuze kube nokuzwakala kwendingilizi okungu-1:1. Uhlangothi oluhlala lubhekene nomhlaba luhluke kakhulu ngokubukeka kanye nokuthungwa kolunye uhlangothi. Uqweqwe olusohlangothini oluseduze luzacile kakhulu, lunamasimu amakhulu e-basalt emnyama eqinile ebizwa ngokuthi i-maria. Uhlangothi lweNyanga, olungabonakali eMhlabeni, lumbozwe uqweqwe olukhulu kakhulu olunama-craters amaningi, kodwa kukhona izilwandle ezimbalwa kuwo.
