NASA txhais lub foob pob hluav taws ua "lub sijhawm hnub qub rau cov hnub qub ci ntsa iab uas zoo nkauj txaus kom pom nyob rau thaj tsam dav heev." Txawm hais tias tsis tau lees paub, cov lus ceeb toom raug suav tias "tseem tos," kom txog thaum lub zej zog tuaj yeem tshuaj xyuas lawv.
txhais li cas thaum koj pom pob hluav taws?
Fireballs qhia tias mob lossis tuag lossis muaj kabmob sib kis lossis qee yam tab tom tuaj.
Yuav tsawg npaum li cas pom pob hluav taws?
Fireball tsis tshua muaj tsawg. Yog tias koj saib lub ntuj tsis tu ncua nyob rau hmo tsaus ntuj rau ob peb teev ntawm ib lub sijhawm, tej zaum koj yuav pom pob hluav taws li ob zaug hauv ib xyoos. Tab sis hnub ci pob hluav taws yog tsawg heev. Yog lub hnub nce thiab koj pom ib lub foob pob hluav taws, kos nws raws li kev pom muaj hmoo.
Dab tsi yog qhov txawv ntawm lub hnub qub thiab foob pob hluav taws?
Ib pob hluav taws yog lwm lo lus rau lub hnub qub ci heev, feem ntau ci dua qhov loj dua -4, uas yog hais txog tib qhov loj ntawm lub ntiaj teb Venus thaum sawv ntxov lossis yav tsaus ntuj. Lub bolide yog ib yam tshwj xeeb ntawm pob hluav taws uas tawg nyob rau hauv lub teeb ci ntsa iab ntawm nws qhov kawg, feem ntau nrog pom kev tawg.
Vim li cas lub hnub qub ci heev hu ua pob hluav taws?
Vim qhov nrawm uas lawv tawm tsam lub ntiaj teb huab cua, cov khoom tawg loj dua 1 millimeter muaj peev xwm tsim lub teeb ci ntsa iab thaum lawv hla saum ntuj saum ntuj. Cov meteors ci ntsa iab no yog qhov peb hu ua foob pob hluav taws thiab lawv feem ntau ua rau ntshaithiab txaus siab rau cov uas ua tim khawv rau lawv.
