????:1?????????2021:?????

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??????

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