????:1???????:????

2??????

3?????

4???????????

5?????????

?????????,?“2024 YR4”???“????8???”?????

?????????,????,????????,?????????,???????????“??????”,????“???????????????”??

????

?:???(CNN)

“2024 YR4”?????????2024????12????????27???????,??????40????????90?,??

??????????????????2025???????1?????,NASA?????????????,???4800??????????,??????????,?????

?,“2024 YR4”????????????????????????“???????????”???“????????”????????????????????1???,?????????????,???????10??

2013????????,??20????,???,??????????20?????????????30??,?????????????,??????,?????7000?,??1000?????????????

??????:??????????????