????: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?????

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