Izazinzulu ziye zafumanisa ukuba iidinosaur kusenokwenzeka ukuba zahlala enyangeni kwiminyaka eyi-65 yezigidi eyadlulayo.Kwenzekentoni?Njengoko sisazi sonke, thina bantu kuphela kwezidalwa eziye zaphuma emhlabeni zaya emajukujukwini, nkqu nenyanga.Indoda yokuqala eyahamba enyangeni yayinguArmstrong, kwaye umzuzu wokunyathela kwakhe enyangeni unokubhalwa phantsi kwiincwadi zembali.Kodwa abanye abantu bacinga ukuba asingobantu kuphela izidalwa eziye zangena esibhakabhakeni, yaye ezinye izidalwa zisenokuba ngaphambilana kunabantu.Ezinye izazinzulu zithi iidinosaur zangena emajukujukwini zaza zehlela enyangeni kwiminyaka ezigidi ezingama-65 eyadlulayo ngaphambi kwabantu.
Umntu kuphela kweentlobo ezikrelekrele kwimbali yendaleko yobomi.Kwenzeka njani ukuba ezinye izidalwa zibe namandla okubhabha ziye enyangeni?Ekubeni kukho intelekelelo enjalo, kufuneka kubekho isiseko senzululwazi sokuyixhasa.Ngaphambi kokuba iChang'e 5 ibuyise umhlaba wenyanga, ilizwe lethu lalisele linamatye enyangeni, ngoko avela njani la matye?Uninzi lwamatye athathwa e-Antarctica, ngaphandle kwezipho ezivela eMelika.I-Antarctica yayikwazi ukuchola kungekuphela amatye enyangeni, kodwa namatye asuka kuMars, kuquka neemeteorite ezithile zase-asteroid.Iqela laseTshayina le-Antarctic yohambo lwenzululwazi lifumene ngaphezu kwe-10,000 yeemeteorites e-Antarctica.
Ukuthatha i-asteroid meteorites kuyaqondakala kuba zininzi iirekhodi ze-asteroids eziwela emoyeni kwaye ziwela emhlabeni.Kodwa amatye avela enyangeni nakuMars, kutheni siwathabatha?Enyanisweni, kulula ukuyiqonda: kwiminyaka ende ye-cosmic, zombini inyanga kunye ne-Mars zatshatyalaliswa yizidalwa ezincinci zasezulwini (ezifana ne-asteroids, i-comets) ngamaxesha athile.Thatha iMars njengomzekelo.Xa impembelelo isenzeka, okoko nje umzimba omncinci wesibhakabhaka mkhulu kwaye ukhawuleza ngokwaneleyo, unokuqhekeza amatye kumphezulu weMars abe ziingceba.Ukuba i-angle yempembelelo ilungile, amanye amaqhekeza aya kufumana amandla e-kinetic ukuze abaleke umxhuzulane kaMars aze angene esithubeni.“Ziyabhadula” esithubeni, kwaye ezinye iindawo ziya kuthinjwa ngumxhuzulane woMhlaba kunye “nokungqubana” kumphezulu woMhlaba.Kule nkqubo, ubunzima obuncinci kunye namaqhekeza akhiwe ngokukhululekileyo aya kutsha emoyeni ngoxinzelelo oluphezulu kunye nobushushu obuphezulu kunye ne-gasify, kwaye ubunzima obuseleyo kunye namaqhekeza akhiwe ngokuqinileyo aya kufikelela emhlabeni.Zikwabizwa ngokuba yi "Mars rocks".Ngokufanayo, iicrater ezinkulu nezincinci kumphezulu wenyanga nazo zophulwa zii asteroids.
Ekubeni amatye asenyangeni nakuMars enokuza emhlabeni, ngaba amatye asemhlabeni anokufikelela enyangeni?Kutheni le nto iidinosaur kusithiwa zezona zilwanyana zokuqala ukuhlala enyangeni?
Malunga nezigidi ezingama-65 kwiminyaka eyadlulayo, iplanethi enkulu enobubanzi obuziikhilomitha ezili-10 kunye nobunzima obumalunga neetoni ezi-2 zeetriliyoni zabetha umhlaba zashiya icrater enkulu.Nangona lo mngxuma ugqunyiwe ngoku, awunakukwazi ukungcwaba intlekele eyenzeka ngelo xesha.Ngenxa yobukhulu besi sijikelezi-langa, yagqobhoza “umngxuma” wexesha elifutshane osemoyeni.Emva kokubetha umhlaba, kunokwenzeka ngokupheleleyo ukuba isixa esikhulu samaqhekeza amatye aye adilizwa emhlabeni.Njengowona mzimba wesibhakabhaka ukufutshane noMhlaba, inyanga inokuthi ibambe amaqhekeza amatye oMhlaba athe abhabha aphuma ngenxa yempembelelo.Ngaphambi kokuba le “mpembelelo” yenzeke, iidinosaur zaziphile iminyaka engaphezu kwezigidi ezili-100, yaye inani elikhulu leefosili zedinosaur zazisele zikho emhlabeni, ngoko asinakubuchasa ubukho bamathambo edinosaur kumaqhekeza awagidiselwa esibhakabhakeni. inyanga.
Ke ngokwembono yethiyori yesayensi, iidayinaso ngokwenene zinokwenzeka ukuba zibe zizidalwa zokuqala ezihlala enyangeni.Nangona ivakala ngathi yintelekelelo, iqondwa ngokupheleleyo yinzululwazi.Mhlawumbi ngenye imini kwixesha elizayo, ngokwenene sifumana amathambo edayinaso enyangeni, kwaye akufanele simangaliswe ngelo xesha.
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