Intlekele .. iasteroid enkulu isondela emhlabeni

I-NASA ijonge ngeliso elibukhali i-asteroid enkulu esingise kwiplanethi yethu, kwaye isondela ngokusondeleyo namhlanje (uLwesihlanu, nge-10 kaJanuwari). I-arhente yendawo yase-US ichaze i-asteroid 2019 UO njenge "Near-Earth Object" (NEO).

Izazinzulu zilandelela amashumi amawaka ezinto ezikufuphi noMhlaba ukuqinisekisa ukuba azingqubani neplanethi yethu, njengoko inguqu enye encinci kwiindlela zazo inokukhokelela kwintlekele emhlabeni.

I-asteroid imalunga neemitha ezingama-550 ubude, kwaye ihamba ngesantya esingaphezu kweekhilomitha ezingama-21 ngeyure. Kulindeleke ukuba kudlule uMhlaba nge-23:50 GMT nge-10 kaJanuwari.

Ngethamsanqa, i-NASA ikholelwa ukuba ilitye lasemkhathini liya kudlula kufutshane noMhlaba kumgama okhuselekileyo oziikhilomitha ezi-2.8. Ngokwe-arhente ye-space, nayiphi na into edlula kwi-120 yezigidi zeekhilomitha emhlabeni ithathwa njengekufutshane nathi.

Izazinzulu zixhalabile

Kubikwa ukuba i-arhente yendawo yayilumkise ukuba ikhathalogu yayo ye-NEO ayiphelelanga, oku kuthetha ukuba isiphumo esingalindelekanga singenzeka nanini na, esixhalabisa izazinzulu ezininzi kunye neengcali emhlabeni jikelele.

Kwakhona waphawula ukuba "iingcali ziqikelela ukuba impembelelo yento elingana naleyo yaqhuma phezu kweChelyabinsk, eRashiya, ngo-2013 - eyayiziimitha ezingama-55 (iimitha ezili-17) ngobukhulu - yenzeka kanye okanye kabini kwinkulungwane, kunye neempembelelo ezinkulu. Izinto eziphilayo zilindeleke ukuba zingabikho rhoqo kwizinga leenkulungwane.Kangangamawaka eminyaka, nangona kunjalo, ngenxa yokunqongophala kwangoku kwekhathalogu ye-NEO, impembelelo engalindelekanga - njengesiganeko saseChelyabinsk - singenzeka nangaliphi na ixesha.

Umalathisi weli ziko leZiko leZifundo zeNgcaciso yeNgcaciso yoMhlaba, uPaul Chodas, uxelele i<em>Newsweek ukuba ukudlula kwee<em>asteroids kufuphi noMhlaba yinto eyenzeka kumawaka eminyaka, ephawula ukuba “bubulumko ukuba abantu baqhubeke bezilandela kangangamashumi eminyaka. baze bafunde ngendlela imijikelo yazo enokuguquka ngayo.” Iinkwenkwezi ziya kudlula kufuphi noMhlaba, ngesantya esimalunga nama-44 XNUMX eekhilomitha ngeyure.

Ukwacacisile ukuba nangona "ilitye elikhulu" liza kuba kufutshane noMhlaba, kuya kuba kude ngokwaneleyo ukuba singakhathazeki.