????:1?????VX:??????????

2??????????

3?????

4???????????

5????????

????????????????????“?????”????,??????????????????(NASA)???????????????12???17???????????????????????????????????,??3?????,NASA??????,???????2?(SpaceX)?“????”???????????

???,NASA?2??????????????????,???,??????????????SpaceX?????????,???3???????

?????????????????,???,NASA???SpaceX?,????????????

?,?6????????6????,??????????????“??”??,??????????6?????????14????,???????????????????,????????????????8?,NASA???????,?????????“?????????????????”???????????2??(SpaceX)????“??????”?????(??? ???)

??????:???