Lub hauv paus chiv keeb ntawm asteroids yog dab tsi?
Lub hauv paus chiv keeb ntawm asteroids yog dab tsi?

Video: Lub hauv paus chiv keeb ntawm asteroids yog dab tsi?

Video: Lub hauv paus chiv keeb ntawm asteroids yog dab tsi?
Video: Qhov Sawv thiab Qhov Poob ntawm Haiv Neeg Loos Lub Teb Chaws (Cov Ntsiab Lus Tseem Ceeb) 2024, Kaum ib hlis
Anonim

Asteroids yog cov khoom seem los ntawm kev tsim peb lub hnub ci txog 4.6 billion xyoo dhau los. Thaum ntxov, lub hnub yug ntawm Jupiter tiv thaiv txhua lub ntiaj teb lub cev los ntawm kev tsim nyob rau hauv qhov sib txawv ntawm Mars thiab Jupiter, ua rau cov khoom me me uas nyob ntawd sib tsoo nrog ib leeg thiab tawg mus rau hauv cov khoom me me. asteroids pom hnub no.

Ib sab ntawm no, qhov twg asteroids tuaj?

Asteroids yog rocky khoom feem ntau pom nyob rau hauv lub asteroid txoj siv sia, thaj tsam ntawm lub hnub ci uas nyob ntau dua 2 ½ npaug ntawm lub hnub raws li lub ntiaj teb ua , ntawm lub orbits ntawm Mars thiab Jupiter. Cov khoom no yog qee zaum hu ua me ntiaj chaw lossis planetoids.

Qhov thib ob, dab tsi yog asteroids ua los ntawm? Lawv yog ua nce ntawm oxygen thiab silicon, tus naj npawb ib thiab thib ob feem ntau cov ntsiab lus nyob rau hauv lub ntiaj teb daim tawv nqaij. Cov hlau asteroids yog muaj li ntawm mus txog 80% hlau thiab 20% sib tov ntawm nickel, iridium, palladium, platinum, kub, magnesium thiab lwm yam hlau zoo li osmium, ruthenium thiab rhodium.

Ib yam li ntawd, cov asteroids thiab meteors tuaj qhov twg?

Tag nrho meteorites los ntawm nyob rau hauv peb lub hnub ci system. Feem ntau ntawm lawv yog tawg ntawm asteroids uas tau tawg ntev dhau los hauv lub asteroid siv, nyob nruab nrab ntawm Mars thiab Jupiter. Cov tawg tawg zoo li no ncig lub hnub rau qee lub sijhawm - feem ntau ntau lab xyoo - ua ntej sib tsoo nrog lub ntiaj teb.

Lub hauv paus chiv keeb ntawm comets yog dab tsi?

Nws yog xav tias feem ntau comets keeb kwm nyob rau hauv ib tug loj heev huab ntawm dej khov thiab hmoov av uas nyob ib ncig ntawm lub hnub ci system. Lub Oort Cloud, raws li nws hu ua, ncua ntau txhiab zaus nyob deb ntawm lub hnub tshaj Pluto, lub ntiaj teb sab nraud.

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