Qhov txawv ntawm Asteroid thiab Meteoroid

Qhov txawv ntawm Asteroid thiab Meteoroid
Qhov txawv ntawm Asteroid thiab Meteoroid

Video: Qhov txawv ntawm Asteroid thiab Meteoroid

Video: Qhov txawv ntawm Asteroid thiab Meteoroid
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Asteroid vs Meteoroid

Cov seem ntxov tshaj plaws ntawm kev tsim peb lub hnub ci uas tau tsim ntau dua 4 billion xyoo dhau los yog asteroids thiab comets. Cov cev me me no tau ua lub luag haujlwm tseem ceeb hauv ntau cov txheej txheem tseem ceeb uas tau ua rau peb lub ntiaj teb nyob ib puag ncig. Nyob rau hauv qhov chaw, ib tug loj pob zeb khoom uas orbits nyob ib ncig ntawm lub hnub yog hu ua ib tug asteroid whereas ntau me me hais yog hu ua meteoroids. Thaum ib tug meteoroid nkag mus rau hauv lub ntiaj teb huab cua thiab vaporizes, nws dhau los ua lub hnub qub tua lossis lub meteor. Txawm li cas los xij, yog tias lub hnub qub me me lossis lub meteoroid loj tseem nyob rov qab los, nws tsaws rau saum lub ntiaj teb lossis dej hiav txwv thiab tom qab ntawd hu ua meteorite.

Lub hauv paus ntawm kev tsim cov meteoroids yog cov khib nyiab hnub ci. Comets tsim cov kwj deg meteoroid thaum lawv cov dej khov nab kuab dhau los ze lub hnub thiab tso cov hmoov av. Cov meteoroid hais li no txuas ntxiv mus rau lub hnub zoo ib yam li lawv niam txiv comet. Kev sib tsoo ntawm asteroids feem ntau ua rau tsim cov meteoroids uas tau tsoo lub ntiaj teb. Raws li cov meteoroids no yooj yim muaj rau kev tshawb fawb, peb paub tias lawv zoo ib yam li asteroids nyob rau hauv lub cev thiab tshuaj muaj pes tsawg leeg.

Asteroid qee zaum hu ua lub ntiaj teb me lossis planetoid. Lawv yog cov me me nyob rau hauv orbit ncig lub hnub. Lawv me dua cov ntiaj chaw tab sis loj dua meteoroids. Lub meteoroid yog qhov tshwm sim ntawm kev sib tsoo ntawm cov asteroids. Hauv cov lus yooj yooj yim, ib lub pob zeb me me uas nyob hauv qhov chaw sab nraud puag ncig lub hnub yog lub meteoroid. Thaum nws tsoo lub ntiaj teb huab cua thiab pib hlawv, nws yog meteor. Tab sis yog tias nws loj txaus kom muaj sia nyob rov nkag, nws tsoo lub ntiaj teb los yog dej hiav txwv thiab ces nws hu ua meteorite.

Qhov sib txawv loj ntawm asteroids thiab meteoroids yog qhov tseeb lawv qhov loj me. Qee lub asteroids loj txaus kom loj npaum li lub hli. Nyob rau hauv kev sib piv, meteoroids yog me me pebbles tab sis qhia tib lub cev thiab tshuaj muaj pes tsawg leeg.

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