Kuwa ane asteroid kuna Earth muna 2017

Asteroids, izvo mune ramangwana kungava pedyo Nyika nechokure mamiriyoni 7.5 makiromita, vanoonekwa vanokwanisa ngozi kuna Earth. Nyika yedu haina kamwe atarisana yepasi pose miviri iyi. Nhasi tiri kutaura pamusoro asteroid sei ngozi Earth uye iripo nokuda foreseeable ramangwana, mukana huru njodzi? Uye kutanga chiduku nhoroondo bhuku.

Chii chinonzi asteroid?

Asteroid (kubva muchiGiriki. "Star-se", "nyeredzi") inonziwo kadiki. Chinhu muviri yokudenga iri kupfuura 30 km. Vamwe vavo vane satellites zvavo. A yakawanda asteroids achipfuura redu renzou. Makore mamiriyoni 3.5 apfuura, Panyika rawa akawandisa asteroids zvakazoita kuti yose kuchinja.

Tichingoda asteroid yekare

Muchirimo 2016 mu Australia, Vanodzidza vakawana zvisaririra zviri asteroid, iyo dhayamita iyo inenge 30-40? Km. Ndizvo kukura kwayo akafanana duku Satellite. The kuwa yaiva mhaka 11-unokosha kudengenyeka, tsunami uye kwakapararira kuparadza. Zvinoita sokuti mumwe asteroids, zvakazoita kuwa pasi aumba kwete chete kutanga upenyu, asi akaumba kusiyana pamusoro biosphere.

Panewo imwe pfungwa kuti risingazivikanwi kunyangarika pakati dinosaurs kwakakonzerwa Mumatsutso hombe asteroid Panyika. Nepo izvi anongova mumwe shanduro zhinji ...

Zvinonakidza! An rekare Impact mwena Chicxulub yakaumbwa somugumisiro musangano pamwe meteorite. udzamu Its kamwe dzakasvikira 20 km. Kuwa meteorite akaita tsunami, uye kuchinja kwemamiriro ekunze, kufanana chando zvenyukireya. Uyezve, makore anosvika 16 Panyika angawira kusvika 26 madhigirii tembiricha.

kuChelyabinsk meteorite

Kuwa ane asteroid kuna Earth muna February 2013 yaiva chimwe chezvinhu aitaura nezvezviitiko kwete chete kuRussia asiwo munyika yose. The asteroid, ane uremu akazosvika matani 16, zvishoma kupiswa mumhepo, asi iduku chikamu akawira pedyo kuChelyabinsk, sezvinei, dzichibhururuka pamusoro payo.

Mugore iroro, akayambuka Ural guta, waimira sehwaro zita rayo. The muviri pachawo wakanga zvikuru mediocre uye yaiva chondrites, asi anofarira kufarira nguva uye nzvimbo kuwa kwake. Hakuna ichiwira Earth asteroids regai kukuvadza kwakadaro, sezvo harwuwire saka pedyo kuti dzine vanhu vakawanda musha. meteorite uremu kwakanga matani 6. Kuwira mudziva Chebarkul meteorite kwakaita agogodza mahwindo mukati 7000 chivakwa. 112 Vanhu vakanga muchipatara kutsva, vanhu vashoma zvikuru akatendeukira vanachiremba rubatsiro. Vose, kuvhunduka chinozunguzirwa yakatsvairwa 6,5 zviuru mativi mamita.

Tichitarisa zvakakanganiswa ane asteroid, kwaizova zvikuru zvikuru kana kudenga hachisi dombo ndokuwira mumvura uye panyika. Sezvineiwo asteroid pasi rikasauya kuva guru-pamwero nenjodzi.

The nengozi zvikuru kuwa hombe meteorite paNyika?

Maererano Masvomhu masayendisiti, kuwa ane asteroid kuna Earth anokwanisa kukonzera muhombe kukuvara kana anenge 1 km kukura mumuviri vachawira panyika paNyika. Zvikurukuru kuumbwa fanera dhayamita kweinenge 15 km, zvichaita kukonzera guruva kupinda mhepo. Uye ichi, akavapindurawo, aigona kutungamirira pamwero mukuru moto. Guruva, neshungu nokuda zuva, kuderedza nenhanho ozone kuwedzera makemikari maitiro ari stratosphere, kuderedza uwandu chezuva yokusvika yepasi pevhu.

Saka, matambudziko ari asteroid kuna Earth kunokosha chaizvo. Global Earth tembiricha anodonhedza pa 8 ⁰ C, kukonzera chando zera. Asi kuti kutungamirira kutsakatika vanhu, ivo asteroid anofanira kuva 10 nguva zvikuru.

ngozi huru

Nguva ichangopfuura, masayendisiti akawana kuti mazita yemakambani kutyisidzira redu kusanganisira centaurs - hofori asteroid ane dhayamita 50 kusvika 100 km. The rinokweva munda mamwe mapuraneti ose makore mamiriyoni 40-100 runodzingira navo akananga Earth wedu. nhamba yavo yawedzera zvinoshamisa ikozvino. Zvichida kana hofori asteroid kuna Earth munguva yemberi iri pedyo, masayendisiti vanogara dzaona, kunyange zvazvo kukarukureta pamusoro trajectory pakati kuwa centaur - basa rakaoma chaizvo.

Uyezve, mazita yemakambani kutyisidzira kuna Pasi zvinosanganisira:

• supervulkanicheskoe kufekuka;
• Denda yose;
• asteroid (0.00013 mu%);
• hondo yenyukireya;
• kwezvakatipoteredza njodzi.

Kana asteroid ruchawira Earth muna October 2017?

Nyaya huru iri parizvino hanya masayendisiti - ngozi kubva asteroid, kukura 2 nguva kupfuura kuChelyabinsk meteorite. Pane mukana kuti chiitiko zvichaitika muna October 2017, izvo zvichaita kuti pave nekukurukurirana zvikuru pamwero njodzi pane yakarova muna 2013. Zvomuchadenga Judith Rice anoti kuti asteroid wacho dhayamita rinosvika 40? Km. chinhu chake vaimudana WF9.

Inokuvadza muviri yokudenga rakaonekwa nemasayendisiti muHawaii shure muna 2012. Mugore iroro aiva ari pedyo chaizvo chinhambwe kubva Earth, uye October 12, 2017 vachauya pedyo zvikuru nengozi redu kure. Masayendisiti anodavira kuti kana asteroid Panyika zvechokwadi anotora nzvimbo, zvichava kutanga kuonekwa yeBritain.

Panguva iyoyo, masayendisiti zviri kushingaira kudzidza mukana kudhumhana. Zvisinei, mukana ari asteroid kuna Earth iri dikisa uye, maererano nevaongorori, 1 ari miriyoni. Zvisinei, richirimo.

kugara ngozi

Zvinofanira kucherechedzwa kuti kugara kubhururuka zvimwe asteroids akasiyana hukuru nokuda Earth. Vari nengozi, asi zvikuru kashoma zvirokwazvo uchawa Panyika. Saka, pakupera 2016 akaita yakadzikiswa apfuura Earth kure muviri 2/3 daro kuti mwedzi, pakukura vashoma rori.

Uye muna January 2017 aizivikanwa kutiza muviri wokudenga, richisvika chakakura 10-storey chivakwa. It nendege mukati 180,000? Km kubva kwatiri.