The ọdịda nke ihe asteroid na Earth na 2017

Asteroids, nke na-eme n'ọdịnihu nwere ike nso ka Earth na a anya nke 7.5 nde kilomita, na-atụle pụrụ ịdị ize ndụ ka Earth. Na mbara ala anyị na-adịghị nwere nsogbu ndị a w ozu. Taa anyị na-ekwu okwu banyere otú ize ndụ asteroid na Earth na enwere na-abịanụ, ndị gbasara nke puru omume a isi ọdachi? Na-amalite na a obere akụkọ ihe mere eme akwụkwọ.

Gịnị bụ ihe asteroid?

Asteroid (Grik. "Star-dị ka", "kpakpando") A na-akpọkwa obere planet. Ọ bụ a eluigwe ahụ na ibu karịa 30 km. Ụfọdụ n'ime ha nwere onwe ha Satellites. A ọtụtụ asteroids njem site usoro mbara igwe anyị. 3.5 nde afọ gara aga, Earth adawo a nnukwu ọnụ ọgụgụ asteroids nke dugara uwa mgbanwe.

Metụtara nke oge ochie asteroid

N'oge opupu ihe ubi nke 2016 na Australia, geologists hụrụ metụtara nke asteroid, na dayameta nke nke bụ ihe dị 30-40 km. Nke ahụ bụ size of ya tụnyere a obere satellite. The ọdịda kpatara 11-ala ọma jijiji, a mbufịt na ebe nile tọgbọrọ n'efu. O nwere ike ịbụ otu n'ime asteroids, nke rụpụtara ke ọdịda n'ala kpụrụ bụghị nanị mmalite nke ndụ, ma kpụrụ ndị di iche iche nke Biosphere.

E nwekwara echiche dị omimi ofufe nke dinosaurs bụ n'ihi ọdịda nke a nnukwu asteroid ka Earth. Ezie na nke a bụ nanị otu n'ime ọtụtụ nsụgharị nke ...

Ọ bụ fun! Oge ochie mmetụta oghere Chicxulub e guzobere n'ihi nke nzukọ ya na meteorite. Ya omimi ozugbo ruru ruo 20 km. The ọdịda nke meteorite mere a mbufịt, na mgbanwe ihu igwe, dị ka nuclear oyi. Ke adianade do, ruo 16 afọ na Earth ike ada 26 degrees okpomọkụ.

Chelyabinsk meteorite

The ọdịda nke ihe asteroid na Earth na February 2013 bụ otu n'ime ndị kasị na-ekwu banyere ihe ndị mere bụghị naanị na Russia ma n'ụwa nile. The asteroid, onye ibu ruru 16 tọn, n'omume ọkụ na ikuku, ma ya dịtụ obere akụkụ dara nso Chelyabinsk, dabara nke ọma, na-efe efe ya.

N'afọ ahụ, o we n'elu Ural obodo, nke na-eje ozi dị ka ihe ndabere maka aha ya. The ahụ n'onwe ya bụ nnọọ mediocre na gụnyere chondrites, ma dọtara mmasị oge na ebe nke ya ọdịda. Ọ dịghị onye nke daworo Earth asteroids anaghị eme ka ndị dị otú ahụ mebiri, ebe ọ na-adịghị ada nso a ụmụ mmadụ bijupụtara obodo. meteorite ibu 6 tọn. Ụra n'ime ọdọ Chebarkul meteorite mere kụrụ aka windo na 7000 ụlọ. 112 mmadụ nọ n'ụlọ ọgwụ na-Burns, a ole na ole ndị ọzọ ndị mmadụ tụgharịa dọkịta maka enyemaka. Na ngụkọta, ujo efegharị efegharị kpochapụ 6,5 puku square mita.

The nnukwu mmebi kpatara ihe asteroid, ga-abụ nnọọ ihe ịrịba ma ọ bụrụ na heaven bụghị a nkume dabara n'ime mmiri na na ala. Ọ dabara nke ọma, na-asteroid n'ala anaghị ghọọ a nnukwu-ọnụ ọgụgụ ọdachi.

The ihe ize ndụ ọdịda nke a nnukwu meteorite na Earth?

Dị ka mgbawa nke ndị ọkà mmụta sayensị, ọdịda nke ihe asteroid ka Earth bụ ike ime ka oke mmebi ma ọ bụrụ na ihe 1 km na size ahụ ga-ada na Earth ala. N'ụzọ bụ isi kpụrụ foneelu n'obosara nke na mkpokọta 15 km, ọ ga-eme ka ájá ịbanye ikuku. Na nke a, n'aka nke ya, pụrụ iduga nnukwu-ọnụ ọgụgụ ọkụ. Ájá, ewe iwe site anyanwụ, ibelata ozone mee ngwangwa e chemical mmeghachi omume na stratosphere, belata ego nke ìhè anyanwụ na-eru planet ala.

N'ihi ya, mmetụta nke asteroid ka Earth bụ nnọọ njọ. Global Earth okpomọkụ tụlee na 8 ⁰ C, na-eme ice afọ. Ma ka na-edu ka ikpochapu nke mmadu, na asteroid ga-10 ugboro ukwuu.

ibu ihe ize ndụ

Nso nso a, ndị ọkà mmụta sayensị achọpụtala na ndepụta nwere egwu na mbara ụwa anyị na-agụnye centaurs - a ibu asteroid na a dayameta nke 50 ruo 100 km. The ndọda ubi nke mbara ala ndị ọzọ ọ bụla 40-100 nde afọ na-achụpụ ha na ntụziaka nke anyị Earth. Ọnụ ọgụgụ ha abawanyele n'ike n'ike now. Ikekwe ọ bụrụ na a ibu asteroid na Earth na n'ọdịnihu dị nso, ndị ọkà mmụta sayensị na-mgbe niile na-gbakọọ, ọ bụ ezie na ngụkọta oge nke trajectory nke ọdịda nke centaur - a ọrụ nnọọ ike.

Ke adianade do, ndepụta nwere egwu na Earth na-agụnye:

• supervulkanicheskoe ọkọ;
• zuru ụwa ọnụ ọrịa;
• asteroid (0.00013 na%);
• a nuclear agha;
• gburugburu ebe obibi ọdachi.

Ma asteroid ga-ada Earth na October 2017?

The isi nke, nke a ugbu a na-eche na ndị ọkà mmụta sayensị - a ize ndụ si asteroid, hà nke 2 ugboro elu karịa Chelyabinsk meteorite. E nwere a puru na ihe omume ga-eme October 2017, nke ga-ịkpalite a n'ọtụtụ ka nnọọ ukwuu ọdachi karịa iti ke 2013. Enyocha mbara igwe Judith Rice rụrụ ụka na asteroid si n'obosara esịmde 40 km. Ya ihe kpọrọ WF9.

Ize Ndụ nke eluigwe ahụ chọpụtara ndị ọkà mmụta sayensị na Hawaii azụ na 2012. N'afọ ahụ ọ bụ na a dị nnọọ nso anya si Earth, na October 12, 2017 ga-abịa nso na kasị dị ize ndụ n'ihi na anyị na mbara ala dị anya. Ọkà mmụta sayensị kweere na ọ bụrụ na asteroid ka Earth n'ezie na-ewe ebe, ọ ga-hụrụ mbụ site British.

N'oge, ọkà mmụta sayensị na-arụsi ọrụ ike na-amụ-ekwe omume nke a nkukota. Otú ọ dị, ihe gbasara nke puru nke asteroid ka Earth bụ nnọọ obere ma bụ, dị ka na-eme nnyocha, 1 na a nde. Otú ọ dị, ọ bụ ka e.

mgbe nile ihe ize ndụ

Ọ ga-kwuru na mgbe niile ofufe ụfọdụ asteroids nke dị iche iche nha site Earth. Ha pụrụ ịdị ize ndụ, ma ukwu adịkarịghị n'ezie ada Earth. Ya mere, na ọgwụgwụ nke 2016 ka bubatara gara aga Earth na a anya nke ahụ 2/3 anya na ọnwa, size of a obere ụgbọala.

Na na January 2017 ji na ụgbọ elu nke a eluigwe ahụ, na-eru na nke nke a 10-storey ụlọ. Ọ na-ama n'ime 180.000 km anyị.