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

2???qt????2020

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????

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