?? ????????????????
![](https://image.chezhanri.com/2019/1119/4b04c716775e1c7b4310a71026b2c729.jpg)
????:1????????:????????
2?600??????
3?????
4???????
5???sn
??,??????????«???-????????????»???????????????????5?????,???????????????“??”?????(????)??????????????
??????(NASA)“?????????????”(DART)????????,????????????????????
????????????,???????????????,??????,?????????,????,??,???
??????,??DART??????,???????????????????????????????????????????INAF-??????????????????5???????,????????????,???????????????????,????????DART????????????????????????????,???
(???????? ????????????? ??????????????????????????????? ??????? ????????????)
???????:????????
???:??