????:1??????app:????????

2????????

3?300??4???

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??????????

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