Indalo yinto emnandi ukuyazi. Yonke imihla sifunda ngakumbi ngayo kwaye siqonda iimfihlakalo ezichaphazela ukusebenza kwayo yonke into. Ngokuqinisekileyo ubonile okanye uthethile iiasteroids. Kuyenzeka ukuba ubabhidanise neemeteorite kuba ungazazi iikhonsepthi kakuhle. I-Asteroids ayikho enye into ngaphandle kwezinto ezincinci ezenziwe ngamatye, ikakhulu, kwaye, njengezinye iiplanethi, zijikeleza iLanga.
Ukuba unemibuzo malunga nokuba ziphi iiasteroids kwaye zahluke njani kwiemeteorites, yile post yakho. Siza kukucacisela konke oku ngokweenkcukacha.
Yintoni i-asteroid kwaye ineziphi iimpawu
Njengokuba besesitshilo, i-asteroid ayisiyonto ingaphaya kwento enamatye ejikeleza iLanga. Nangona ubukhulu bayo bungalinganiyo neplanethi, ukujikeleza kwayo kuyafana. Zininzi ii-asteroids ezijikelezayo kwindawo yethu ISistema Solar. Uninzi lwazo lwenza into esiyaziyo njengebhanti ye-asteroid. Lo mmandla ulele phakathi kweendlela ze Marte y Umbhali. Njengeeplanethi, i-orbit yazo iyi-elliptical.
Abafumaneki kweli bhanti kuphela, kodwa banokufumaneka kwi-trajectory yezinye iiplanethi. Oku kuthetha ukuba le nto inamatye inendlela efanayo ejikeleze ilanga, kodwa akukho nto inokukhathazeka ngayo. Unokucinga ukuba ukuba i-asteroid ikwi-orbit enye kwiplanethi yethu, liyakufika ixesha lokuba ingangqubana kwaye ibangele iintlekele. Oku akunje. Akukho sidingo sokukhathazeka njengoko zingangqubani.
Isantya ii-asteroids ezikwi-orbit enye njengeplanethi ye-orbit zihlala zihamba ngesantya esifanayo. Ke ngoko, abanakuze bahlangane. Ukuze oku kwenzeke, nokuba uMhlaba kufuneka uhambe kancinci, okanye i-asteroid kufuneka inyuse isantya sayo. Oku akwenzeki kwisithuba esingaphandle ngaphandle kokuba kukho amandla angaphandle enza oku. Okwangoku, imithetho yesindululo ilawulwa yi-inertia.
Iindidi zeeasteroids
Ezi asteroids zivela ekwakhiweni kweSolar System. Njengoko sibonile kwamanye amanqaku, iSolar System eyakhiwe malunga ne-4.600 yezigidigidi zeminyaka eyadlulayo. Oku kwenzeka xa ilifu elikhulu legesi kunye nothuli ladilika. Njengoko oku kwenzekileyo, uninzi lwezixhobo zawela embindini welifu, zenza i-Sun.
Zonke ezinye izinto zaba ziiplanethi. Nangona kunjalo, izinto ezikwibhanti ye-asteroid khange zibenalo ithuba lokuba yiplanethi. Kuba ii-asteroids zenza iindawo neemeko ezahlukeneyo, azifani. Ngamnye ubunjwe kumgama owahlukileyo ukusuka eLangeni. Oku kwenza iimeko nobume bohluke ngokunjalo.
Sifumana izinto ezingqukuva, Endaweni yoko baneemilo ezijijekileyo nezingaqhelekanga. Oku kwenziwa yimithambo eqhubekayo nezinye izinto de zibe lolo hlobo.
Ezinye zinamakhulu eekhilomitha ububanzi kwaye zinkulu. Bancinci, njengelitye. Uninzi lwazo lwenziwe ngeentlobo ezahlukeneyo zamatye. Uninzi lwazo lunenani elifanelekileyo lenickel kunye nentsimbi.
Luluphi ulwazi olukhutshiweyo?
Ezi zinto zinamatye zingasinika ulwazi malunga nolwazi lwendalo yonke. Kuba zenziwa ngaxeshanye nazo zonke ezinye iNkqubo yeSola, la matye esithuba anokusinika ulwazi malunga nembali yeeplanethi kunye neLanga. Oososayensi banokuzihlola ezi asteroids ukufumana ulwazi ngayo.
Kukho iindawo ezininzi ze-NASA apho ii-asteroids ziye zabonwa. Kwinqwelo-moya eyenziwayo yesiphekepheke se-Shoemaker eyenzelwe u-Eros (igama elinikwe i-asteroid) yahlala kuyo ukuze ifumane idatha ethile ekwakhiweni nasekubunjweni kwento enamatye. Kukho ezinye iindawo zokuhlola ezifana ne-Dawn spacecraft ukutyelela i-asteroid belt apho iVesta yahlaziywa khona, i-asteroid enkulu njengeplanethi encinci, kunye ne-OSIRIS-REX ye-spacecraft eye yakhonza ukutyelela i-asteroid eseduze. Emhlabeni ebizwa Bennu kunye yiza nesampulu kwiplanethi yethu.
Umahluko ngeemeteorites
Njengoko besitshilo ekuqaleni kwenqaku, ngokuqinisekileyo ukhe wayiphazama imeteorite njenge-asteroid. Kwaye kukuba iiasteroids zihlelwa ngokwemo ezikulo Solar System. Umzekelo, sele sitshilo abo bakwi-asteroid belt phakathi kweMars neJupiter. Kukho ezinye ezibizwa ngokuba zii-NEAs kuba zikufutshane noMhlaba. Sikwafumana iiTrojans, zezo zijikeleze ujikelezo lweJupiter.
Ngakolunye uhlangothi, sinamaCentaurs. Ezi zezi zikwindawo engaphandle yeNkqubo yeLanga, kufutshane ne Ilifu Oort. Okokugqibela, sishiywe zii asteroids eziwumbumba oMhlaba. Yi le, "ezibanjiweyo" ngumxhuzulane womhlaba kunye nokuhamba kwawo ixesha elide. Banokuhamba kwakhona.
Ukuza kuthi ga ngoku ndiyathemba ukuba konke kuhamba kakuhle. Ngoku lixesha lokuba uyazi ukuba yintoni imeteorite. I-meteorite ayikho enye into ngaphandle kwe-asteroid efika eMhlabeni. Eli gama linikwa kuba, xa lingena emoyeni, lishiya umkhondo wokukhanya obizwa ngokuba yimeteor. Ezi ziyingozi ebantwini. Nangona kunjalo, iatmosfera yethu iyasikhusela kuzo, kuba xa zidibana nayo, ziphela zinyibilika.
Kuxhomekeke kubume abanazo, banokuba ngamatye, isinyithi okanye zombini. Impembelelo yemeteorite inokuba yinto elungileyo, kuba ulwazi oluninzi lunokufumaneka malunga nayo. Kungenzeka ukuba inokubangela umonakalo ukuba inkulu ngokwaneleyo ukuba i-atmosfera ingayonakalisi ngokupheleleyo xa idibana. Oku kunokuxelwa kwangaphambili namhlanje ngokwazi indlela eya kuyo.
Ndiyathemba ukuba ngolu lwazi ungafunda ngakumbi malunga ne-asteroids kunye neemeteorites.